Top 54 Slang For Illogical – Meaning & Usage

When it comes to expressing concepts that just don’t add up, our language has a way of capturing the essence of the absurd. In this listicle, we uncover some of the most creative and quirky slang terms used to describe things that are simply illogical. Get ready to expand your vocabulary and have a good chuckle at the same time as we delve into the world of slang for illogical.

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1. Wacko

This term is used to describe someone or something that is irrational, illogical, or mentally unstable.

  • For example, “That conspiracy theory is completely wacko.”
  • In a discussion about a strange behavior, someone might say, “He went wacko and started throwing things.”
  • A person might describe a bizarre situation as, “It was a wacko party with people wearing costumes and dancing on the tables.”

2. Nonsensical

This word is used to describe something that doesn’t make sense or lacks logical reasoning.

  • For instance, “His explanation was completely nonsensical.”
  • In a debate, someone might argue, “Your argument is nonsensical and doesn’t hold up.”
  • A person might comment on a confusing situation, saying, “The instructions for this game are nonsensical.”

3. Bonkers

This slang term is used to describe something or someone that is extremely illogical, crazy, or absurd.

  • For example, “That idea is bonkers, it will never work.”
  • In a conversation about a wild party, someone might say, “It was a bonkers night with people jumping into the pool fully clothed.”
  • A person might describe a bizarre event, saying, “The whole situation was bonkers, like something out of a movie.”

4. Absurd

This word is used to describe something that is completely unreasonable, ridiculous, or illogical.

  • For instance, “The price for that item is absurd, no one would pay that much.”
  • In a discussion about a strange rule, someone might say, “It’s absurd that we can’t bring our own food.”
  • A person might comment on a nonsensical statement, saying, “What you’re saying is absurd, it makes no sense.”

5. Batty

This slang term is used to describe someone or something that is slightly crazy, eccentric, or illogical.

  • For example, “She has some batty ideas about how to run a business.”
  • In a conversation about a strange behavior, someone might say, “He was acting really batty, talking to imaginary friends.”
  • A person might describe a bizarre situation, saying, “The whole day was batty, with unexpected twists and turns.”

6. Cockamamie

This word is used to describe something that is ridiculous or illogical.

  • For example, “That idea is completely cockamamie.”
  • Someone might say, “I can’t believe you fell for that cockamamie story.”
  • In a discussion about conspiracy theories, a person might dismiss them as “cockamamie theories.”

7. Daft

This term is used to describe someone or something that is foolish or lacks common sense.

  • For instance, “Stop being daft and listen to reason.”
  • A person might say, “He’s acting daft, he knows better than that.”
  • In a conversation about irrational behavior, someone might comment, “That’s just daft, there’s no logical explanation for it.”

8. Loony

This slang word is used to describe someone who is mentally unstable or behaves in an irrational manner.

  • For example, “He’s gone completely loony, talking to imaginary friends.”
  • Someone might say, “Don’t mind her, she’s a bit loony.”
  • In a discussion about bizarre behavior, a person might comment, “That’s just loony, no one in their right mind would do that.”

9. Nutty

This word is used to describe someone or something that is strange or unconventional.

  • For instance, “He’s a bit nutty, always coming up with wild ideas.”
  • A person might say, “That’s a nutty way of looking at things.”
  • In a conversation about unusual habits, someone might comment, “I have this nutty ritual I do every morning.”

10. Screwball

This term is used to describe someone or something that is odd, unpredictable, or unconventional.

  • For example, “He’s a total screwball, you never know what he’ll do next.”
  • Someone might say, “That’s a screwball idea, it’ll never work.”
  • In a discussion about unusual behavior, a person might comment, “She’s a bit of a screwball, but in a lovable way.”

11. Unreasonable

This word describes something that is not logical or rational. It refers to ideas, actions, or decisions that lack reason or common sense.

  • For example, “It’s unreasonable to expect a 5-year-old to sit still for three hours.”
  • In a debate, one might argue, “Your proposal is completely unreasonable and impractical.”
  • A person might complain, “The price of this product is unreasonable considering its quality.”

12. Whackadoodle

This slang term is used to describe someone or something that is extremely illogical or absurd. It often implies a sense of silliness or eccentricity.

  • For instance, “That conspiracy theory is total whackadoodle.”
  • In a humorous context, someone might say, “I had a dream last night that I was riding a unicorn. It was whackadoodle!”
  • A person might comment, “Her fashion sense is always so whackadoodle.”

13. Kooky

This slang term refers to someone or something that is peculiar or odd in an entertaining or endearing way. It is often used to describe behavior or ideas that are illogical or unconventional.

  • For example, “She has a kooky sense of humor.”
  • In a lighthearted conversation, one might say, “I love his kooky dance moves.”
  • A person might comment, “That movie was so kooky, but I couldn’t stop laughing.”

14. Ridiculous

This word describes something that is completely illogical or unreasonable. It often implies a sense of disbelief or incredulity towards the subject being described.

  • For instance, “The price of this luxury car is ridiculous.”
  • In a heated argument, one might exclaim, “That’s a ridiculous statement!”
  • A person might complain, “I can’t believe she said something so ridiculous.”

15. Zany

This slang term refers to someone or something that is eccentric, unconventional, and often illogical in a humorous or entertaining way. It implies a sense of quirkiness or unpredictability.

  • For example, “He always has zany ideas for parties.”
  • In a playful conversation, one might say, “Let’s do something zany and spontaneous.”
  • A person might comment, “Her zany sense of fashion always turns heads.”

16. Baloney

This word is used to describe something that is ridiculous, absurd, or untrue. It is often used to dismiss an illogical statement or claim.

  • For example, if someone says, “I can fly without wings,” you might respond, “That’s a bunch of baloney.”
  • In a debate, one might say, “Your argument is full of baloney. It makes no sense.”
  • A person might describe a conspiracy theory as “total baloney.”
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17. Cockeyed

This slang term is used to describe something that is illogical, absurd, or misaligned. It can refer to an idea, plan, or situation that is irrational or nonsensical.

  • For instance, if someone suggests a plan that has no chance of success, you might say, “That’s a cockeyed idea.”
  • In a discussion about a chaotic situation, one might comment, “Everything is so cockeyed, nothing makes sense.”
  • A person might describe a decision as “completely cockeyed.”

18. Daffy

This word is used to describe someone or something that is eccentric, strange, or foolish. It can refer to behavior, ideas, or actions that are illogical or nonsensical.

  • For example, if someone acts in a bizarre or nonsensical manner, you might say, “He’s a bit daffy.”
  • In a conversation about a ridiculous plan, one might comment, “That’s just daffy. It will never work.”
  • A person might describe a conspiracy theory as “completely daffy.”

19. Goofy

This slang term is used to describe something that is silly, absurd, or illogical. It can refer to behavior, ideas, or situations that are nonsensical or foolish.

  • For instance, if someone tells a joke that doesn’t make sense, you might say, “That’s a goofy joke.”
  • In a discussion about a strange or irrational plan, one might comment, “That’s just goofy. It won’t lead to any success.”
  • A person might describe a conspiracy theory as “totally goofy.”

20. Inane

This word is used to describe something that is lacking in sense, meaning, or importance. It can refer to statements, ideas, or actions that are illogical or nonsensical.

  • For example, if someone makes a comment that has no logical basis, you might say, “That’s an inane statement.”
  • In a discussion about a pointless argument, one might comment, “This whole debate is inane. It’s not leading us anywhere.”
  • A person might describe a conspiracy theory as “utterly inane.”

21. Ludicrous

This word refers to something that is extremely ridiculous or illogical. It is often used to describe ideas, situations, or actions that are beyond belief.

  • For example, “The idea of pigs flying is ludicrous.”
  • In a discussion about outrageous conspiracy theories, someone might say, “That theory is absolutely ludicrous.”
  • A person might comment on a nonsensical decision by saying, “That’s a ludicrous choice to make.”

22. Silly

This word is used to describe something that is foolish, illogical, or lacking seriousness. It often refers to actions or behavior that is amusing or nonsensical.

  • For instance, “Don’t be silly, there’s no such thing as ghosts.”
  • In a playful conversation, someone might say, “Let’s do something silly and wear mismatched socks.”
  • A person might comment on a nonsensical statement by saying, “That’s a silly thing to say.”

23. Tomfoolery

This word refers to playful or foolish behavior that is considered silly or illogical. It often implies a sense of harmless mischief or pranks.

  • For example, “The children engaged in some tomfoolery by placing whoopee cushions on all the chairs.”
  • In a discussion about April Fools’ Day, someone might say, “I love all the tomfoolery that happens on that day.”
  • A person might comment on a silly prank by saying, “That’s some classic tomfoolery right there.”

24. Crackpot

This word is used to describe someone who is considered eccentric, irrational, or illogical in their beliefs or behavior. It is often used to dismiss or mock someone’s ideas or theories.

  • For instance, “That guy is a total crackpot with his conspiracy theories.”
  • In a discussion about pseudoscience, someone might say, “There are always crackpots who believe in ridiculous things.”
  • A person might comment on an irrational argument by saying, “Don’t listen to him, he’s just a crackpot.”

25. Farfetched

This word describes something that is highly unlikely or improbable. It suggests that an idea or story is illogical or unrealistic.

  • For example, “The chances of winning the lottery are farfetched.”
  • In a discussion about fantasy novels, someone might say, “The plot of that book is a bit farfetched.”
  • A person might comment on an implausible claim by saying, “That sounds farfetched to me.”

26. Harebrained

Harebrained refers to something that is foolish or lacking in common sense. It is often used to describe ideas or actions that are illogical or impractical.

  • For example, “His harebrained scheme to build a rocket in his backyard was bound to fail.”
  • In a discussion about illogical decisions, someone might say, “I can’t believe she went along with that harebrained idea.”
  • A person might describe a confusing situation as, “It was a harebrained mess.”

27. Preposterous

Preposterous means something that is utterly absurd, unreasonable, or illogical. It is used to emphasize the extreme lack of logic or sense in a situation or statement.

  • For instance, “His claim that he can fly without wings is preposterous.”
  • In a debate about an outrageous proposal, someone might argue, “That idea is preposterous and would never work.”
  • A person might exclaim, “It’s preposterous to think that aliens are secretly controlling the government!”

28. Senseless

Senseless refers to something that lacks meaning, logic, or reason. It is often used to describe actions or events that are illogical or without purpose.

  • For example, “The senseless violence in the city needs to stop.”
  • In a discussion about a confusing situation, someone might say, “The whole thing was just senseless.”
  • A person might comment, “It’s senseless to waste so much time on something that doesn’t matter.”

29. Wacky

Wacky describes something that is eccentric, unusual, or bizarre. It is often used to describe ideas, behavior, or situations that are illogical or unconventional.

  • For instance, “She always has the wackiest ideas for Halloween costumes.”
  • In a conversation about a strange event, someone might say, “It was a wacky situation that I’ll never forget.”
  • A person might describe a nonsensical statement as, “That’s just wacky talk!”

30. Bizarre

Bizarre refers to something that is extremely unusual, odd, or out of the ordinary. It is used to describe things that are illogical or unexpected in a way that is fascinating or perplexing.

  • For example, “The bizarre sculpture caught everyone’s attention.”
  • In a discussion about a strange occurrence, someone might say, “It was a bizarre turn of events.”
  • A person might comment, “The whole situation was just bizarre and didn’t make any sense.”

31. Cuckoo

This term is used to describe someone or something that is mentally unstable or irrational. It can also be used to refer to behaviors or ideas that are strange or nonsensical.

  • For example, “He’s gone completely cuckoo after his breakup.”
  • A person might say, “That conspiracy theory is just cuckoo.”
  • Another might exclaim, “You’re acting cuckoo if you think I’ll believe that!”

32. Foolish

This word is used to describe actions or ideas that lack good judgment or common sense. It implies a lack of intelligence or prudence.

  • For instance, “It would be foolish to go outside without a jacket in this weather.”
  • A person might say, “Don’t be foolish and try to fix the electrical issue yourself.”
  • Another might warn, “Investing all your money in one risky venture is a foolish move.”

33. Irrational

This term is used to describe thoughts, actions, or decisions that are not logical or reasonable. It implies a lack of sound judgment or the absence of a rational thought process.

  • For example, “Her fear of spiders is irrational.”
  • A person might say, “It’s irrational to believe in superstitions.”
  • Another might argue, “His decision to quit his stable job without a backup plan is completely irrational.”

34. Nuts

This word is used to describe someone or something that is mentally unstable or irrational. It can also be used to refer to behaviors or ideas that are strange, absurd, or nonsensical.

  • For instance, “He went nuts when he found out he won the lottery.”
  • A person might say, “That conspiracy theory is absolutely nuts.”
  • Another might exclaim, “You’re driving me nuts with all your complaining!”

35. Quirky

This term is used to describe someone or something that is unconventional, peculiar, or eccentric. It often refers to behaviors, ideas, or traits that are unique or unusual.

  • For example, “She has a quirky sense of fashion.”
  • A person might say, “His taste in music is quite quirky.”
  • Another might comment, “The artist’s paintings have a quirky charm to them.”

36. Stupid

This word is used to describe something or someone that lacks intelligence or common sense. It can also be used as an insult.

  • For example, “That was a stupid mistake.”
  • Someone might say, “I can’t believe I did something so stupid.”
  • Another person might exclaim, “That’s the stupidest thing I’ve ever heard!”

37. Absurdity

Absurdity refers to something that is completely illogical or nonsensical. It can also describe a situation or statement that is extremely unreasonable or foolish.

  • For instance, “The absurdity of his argument was clear to everyone.”
  • In a discussion about a bizarre event, someone might comment, “The absurdity of the situation was hard to comprehend.”
  • A person might express their frustration by saying, “I can’t believe I have to deal with this absurdity.”

38. Bananas

When something is described as “bananas,” it means it is crazy or completely illogical. This term is often used to emphasize the absurdity of a situation or idea.

  • For example, “The whole situation is just bananas.”
  • Someone might say, “I can’t believe how bananas this party is.”
  • Another person might exclaim, “That’s the most bananas thing I’ve ever heard!”

39. Crackbrained

Crackbrained is a slang term used to describe someone who is completely illogical, irrational, or crazy. It is often used in a lighthearted or humorous way.

  • For instance, “He came up with a crackbrained idea.”
  • In a discussion about strange behavior, someone might comment, “He’s acting crackbrained.”
  • A person might jokingly say, “I must be crackbrained to agree to this.”

40. Dippy

Dippy is a slang term used to describe someone or something that is silly, foolish, or lacking common sense. It is often used in a playful or affectionate manner.

  • For example, “She’s a bit dippy, but we love her.”
  • Someone might comment, “That’s a dippy idea.”
  • Another person might playfully tease, “Don’t be so dippy!”

41. Flaky

This term is used to describe someone or something that is unreliable, inconsistent, or prone to changing plans or commitments.

  • For example, “She’s so flaky, she always cancels plans at the last minute.”
  • In a discussion about a friend who frequently changes their mind, someone might say, “They’re so flaky, you never know what they’ll decide.”
  • A person might describe a computer program that crashes frequently as “flaky.”
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42. Half-baked

This phrase is used to describe an idea, plan, or argument that is poorly thought out, incomplete, or lacking in substance.

  • For instance, “His proposal was half-baked and didn’t address all the key issues.”
  • In a conversation about a poorly executed project, someone might say, “The whole thing was half-baked from the start.”
  • A person might criticize a politician’s policy as “half-baked” if it lacks details or practical implementation strategies.

43. Jumbled

This word is used to describe something that is confused, disorganized, or mixed up in a chaotic manner.

  • For example, “Her thoughts were jumbled and she couldn’t articulate her ideas clearly.”
  • In a discussion about a messy room, someone might say, “It’s so jumbled in here, I can’t find anything.”
  • A person might describe a poorly designed website as “jumbled” if the layout is confusing and hard to navigate.

44. Outlandish

This term is used to describe something that is bizarre, eccentric, or unconventional in a way that is seen as unusual or strange.

  • For instance, “Her fashion choices are always outlandish and draw attention.”
  • In a conversation about a wild conspiracy theory, someone might say, “That’s the most outlandish idea I’ve ever heard.”
  • A person might describe a futuristic building design as “outlandish” if it deviates significantly from traditional architectural norms.

45. Twisted

This word is used to describe something that is distorted, perverted, or deviates from what is considered normal or rational.

  • For example, “His sense of humor is twisted and he finds joy in dark jokes.”
  • In a discussion about a disturbing crime, someone might say, “The details of the case are truly twisted.”
  • A person might describe a plot twist in a movie as “twisted” if it completely changes the direction of the story in an unexpected way.
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46. Weird

This term is used to describe something that is not normal or is out of the ordinary.

  • For example, “That movie was really weird. I couldn’t understand what was happening.”
  • A person might say, “I saw this weird-looking animal in my backyard. I’ve never seen anything like it before.”
  • Someone might describe a fashion trend as, “Those pants are so weird. I don’t understand why anyone would wear them.”

47. Confused

When someone is confused, they are unsure or perplexed about something and cannot make sense of it.

  • For instance, “I’m confused about the instructions. Can you explain them again?”
  • A person might say, “I’m feeling really confused about my career path. I don’t know what I want to do.”
  • Someone might describe a complicated math problem as, “This equation is so confusing. I can’t figure out how to solve it.”

48. Farcical

This term is used to describe something that is comically exaggerated or absurd, often in a way that mocks or satirizes a situation.

  • For example, “The play was a farcical comedy that had the audience laughing throughout.”
  • A person might say, “The politician’s promises were so farcical. No one believed a word he said.”
  • Someone might describe a chaotic situation as, “The office party turned into a farcical disaster with people slipping on spilled drinks and dancing on tables.”

49. Wack

This term is used to describe something that is strange, absurd, or out of touch with reality.

  • For instance, “That movie was wack. The plot made no sense.”
  • A person might say, “The new fashion trend is so wack. I can’t believe people actually wear that.”
  • Someone might describe a conspiracy theory as, “That idea is wack. There’s no evidence to support it.”

50. Bunk

This term is used to describe something that is false, unreliable, or without merit.

  • For example, “The article was full of bunk. It was filled with made-up facts.”
  • A person might say, “Don’t listen to him. He’s just spouting bunk.”
  • Someone might describe a rumor as, “That story is total bunk. There’s no truth to it.”

51. Incoherent

This term refers to something that is difficult to understand or lacks logical coherence. It can describe speech, writing, or even thoughts that are jumbled or nonsensical.

  • For example, “His argument was incoherent and didn’t make any sense.”
  • Someone might say, “I tried reading that book, but the plot was so incoherent that I couldn’t follow it.”
  • In a discussion about a confusing movie, a person might comment, “The film had an incoherent storyline that left me feeling frustrated.”

52. Unsound

This term is used to describe something that is not based on sound reasoning or logical thinking. It suggests that an argument or idea is flawed or lacking in validity.

  • For instance, “His theory is completely unsound and lacks any evidence.”
  • In a debate, someone might say, “Your reasoning is unsound and doesn’t hold up under scrutiny.”
  • A person discussing a flawed plan might comment, “The proposal is unsound and would likely lead to negative consequences.”

53. Whack

This slang term is used to describe something that is bizarre, strange, or illogical. It implies that the subject is not normal or sane.

  • For example, “That idea is whack! It makes no sense.”
  • Someone might say, “I can’t believe she said that. She’s totally whack.”
  • In a discussion about a nonsensical statement, a person might exclaim, “That’s whack! It’s completely illogical!”

54. Far-fetched

This term is used to describe something that is highly unlikely or improbable. It suggests that an idea or story is too unrealistic or difficult to believe.

  • For instance, “The plot of that movie was far-fetched and didn’t seem plausible.”
  • A person might say, “I find it hard to believe that story. It sounds far-fetched.”
  • In a conversation about an unlikely scenario, someone might comment, “That idea is far-fetched. It’s not grounded in reality.”