Top 46 Slang For Stern – Meaning & Usage

When it comes to expressing seriousness or strictness, finding the right words can be a challenge. We’ve got you covered with a curated list of the top slang for stern, perfect for those moments when you need to convey authority or no-nonsense attitude. Stay tuned to level up your vocabulary and command attention in any situation!

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1. No-nonsense

This term describes someone who is straightforward, practical, and doesn’t tolerate nonsense or frivolity. It implies that the person is focused on efficiency and getting things done.

For example, a boss might be described as “no-nonsense” if they expect punctuality and productivity from their employees.
In a discussion about parenting, someone might say, “My mom was a no-nonsense kind of woman. She didn’t tolerate any excuses.”
A teacher might be referred to as “no-nonsense” if they have strict rules and high expectations for their students.

2. Hard-ass

This term refers to someone who is tough, demanding, and unyielding in their expectations or rules. It implies that the person is difficult to please and may be harsh in their criticism or discipline.

For instance, a coach might be called a “hard-ass” if they push their athletes to their limits and demand perfection.
In a workplace setting, a manager who is tough and expects a lot from their employees might be labeled a “hard-ass.”
Someone might say, “My dad was a hard-ass when it came to curfew. If I was even a minute late, I was grounded.”

3. Tough cookie

This term is used to describe someone who is strong, resilient, and able to handle difficult situations or challenges with determination. It implies that the person is not easily discouraged or defeated.

For example, a friend who has overcome many obstacles in life might be called a “tough cookie.”
In a discussion about a difficult boss, someone might say, “She’s a tough cookie to work for. She expects a lot, but she also pushes you to succeed.”
A character in a book or movie who faces adversity with strength and courage might be described as a “tough cookie.”

4. Iron-fisted

This term describes someone who is firm, unyielding, and unwavering in their authority or control. It implies that the person has a strong grip on power and is not easily influenced or swayed.

For instance, a dictator who rules with an iron fist would use harsh tactics to maintain control.
In a discussion about a strict teacher, someone might say, “She runs her classroom with an iron fist. There’s no room for misbehavior.”
A boss who tightly controls every aspect of their employees’ work might be referred to as “iron-fisted.”

5. By the book

This term refers to someone who adheres strictly to established rules, guidelines, or procedures. It implies that the person does not deviate from the prescribed way of doing things.

For example, a police officer who always follows the law and enforces it without exceptions might be described as “by the book.”
In a discussion about a meticulous accountant, someone might say, “He’s very by the book when it comes to financial regulations.”
A manager who insists on following company policies and protocols precisely might be labeled as “by the book.”

6. Straight-laced

This term refers to someone who is very traditional, conservative, or strict in their behavior or beliefs. It often implies a lack of flexibility or willingness to deviate from established norms.

For example, “She comes from a straight-laced family and has always followed the rules.”
In a discussion about dress codes, someone might say, “My workplace is very straight-laced, so I have to dress formally.”
A person describing their upbringing might say, “I had a strict, straight-laced upbringing with lots of rules and expectations.”

7. Stiff-necked

This slang term is used to describe someone who is stubborn, inflexible, or resistant to change. It implies a person who is set in their ways and unwilling to consider alternative perspectives or ideas.

For instance, “He’s so stiff-necked, he refuses to listen to anyone else’s opinion.”
In a conversation about negotiations, someone might say, “The other party was so stiff-necked, they wouldn’t budge on their demands.”
A person describing a difficult coworker might say, “Dealing with her can be challenging because she’s so stiff-necked.”

8. Unyielding

This term describes someone or something that is rigid, uncompromising, or unwilling to change or adapt. It can refer to a person’s personality, beliefs, or actions.

For example, “Her unyielding stance on the issue made it difficult to find a compromise.”
In a discussion about work expectations, someone might say, “The company has unyielding deadlines, so we have to work quickly.”
A person describing a difficult situation might say, “I faced an unyielding obstacle that seemed impossible to overcome.”

9. Rigorous

This term describes something that is strict, thorough, or requiring a lot of effort and attention to detail. It often refers to tasks, processes, or standards that are challenging or strict in nature.

For instance, “The training program was rigorous, but it prepared me well for the job.”
In a conversation about academic programs, someone might say, “The university has a rigorous curriculum that pushes students to excel.”
A person describing their workout routine might say, “I have a rigorous exercise regimen that includes intense cardio and weightlifting.”

10. Unbending

This slang term refers to someone who is rigid, unyielding, or unwilling to compromise. It implies a person who is set in their ways and resistant to change or alternative viewpoints.

For example, “His unbending attitude made it difficult to work together.”
In a discussion about negotiations, someone might say, “The other party was unbending in their demands, refusing to make any concessions.”
A person describing a strict parent might say, “My mom is unbending when it comes to following the rules.”

11. Firm-handed

This term refers to someone who is strict and unwavering in their decisions or actions. It implies that the person has a strong and decisive approach.

For example, a manager might be described as firm-handed if they consistently enforce rules and expectations.
In a discussion about leadership, someone might say, “A firm-handed approach can be effective in maintaining order and discipline.”
A parent might use this term to describe themselves, saying, “I have to be firm-handed with my children to teach them right from wrong.”

12. Uncompromising

This term describes someone who refuses to make concessions or compromises. It implies that the person has a strong and unwavering stance on a particular issue.

For instance, a negotiator might be described as uncompromising if they refuse to budge on their demands.
In a political debate, someone might say, “We need an uncompromising leader who will fight for our values.”
A person discussing their personal beliefs might state, “I have an uncompromising stance on this matter and will not waver.”

13. Steely

This term describes someone who is strong, determined, and unyielding. It implies that the person possesses a sense of resolve and inner strength.

For example, a leader might be described as steely if they remain calm and composed in the face of adversity.
In a discussion about perseverance, someone might say, “She faced numerous challenges, but her steely determination carried her through.”
A person describing their own character might say, “I have a steely resolve when it comes to achieving my goals.”

14. Unrelenting

This term describes someone who is persistent and continues to pursue their goals or objectives without giving up. It implies that the person is determined and unwavering in their efforts.

For instance, a salesperson might be described as unrelenting if they persistently follow up with potential clients.
In a conversation about personal growth, someone might say, “Success often comes to those who are unrelenting in their pursuit.”
A person describing their work ethic might state, “I have an unrelenting drive to succeed and won’t settle for anything less.”

15. Unwavering

This term describes someone who remains firm and resolute in their beliefs, opinions, or actions. It implies that the person does not waver or falter in their convictions.

For example, a leader might be described as unwavering if they consistently stick to their principles.
In a discussion about loyalty, someone might say, “He has proven himself to be unwavering in his support.”
A person describing their own character might state, “I am unwavering in my commitment to justice and equality.”

16. Unflinching

This slang term is used to describe someone who is not easily intimidated or deterred. It implies a sense of determination and resolve in the face of challenges.

For example, a person might say, “She faced the criticism with unflinching resolve.”
In a discussion about bravery, someone might comment, “Being unflinching is a key trait of a true hero.”
A sports commentator might describe an athlete as “unflinching” when they continue to perform well under pressure.

17. Unshakable

This slang term refers to someone who is firm and unwavering in their beliefs or convictions. It suggests a strong sense of determination and steadfastness.

For instance, a person might say, “His unshakable faith helped him overcome adversity.”
In a discussion about perseverance, someone might comment, “Being unshakable in the face of obstacles is what sets successful people apart.”
A motivational speaker might encourage their audience to be “unshakable” in pursuing their goals.

18. Stern-faced

This slang term describes someone who has a serious or stern expression on their face. It implies a lack of humor or warmth in their demeanor.

For example, a person might say, “He walked into the room with a stern-faced expression.”
In a discussion about first impressions, someone might comment, “A stern-faced individual can come across as unapproachable.”
A movie reviewer might describe an actor’s performance as “convincingly stern-faced” when portraying a serious character.

19. Authoritative

This slang term refers to someone who has a sense of authority and commands respect. It implies a position of power or knowledge.

For instance, a person might say, “She spoke with an authoritative tone that left no room for doubt.”
In a discussion about leadership, someone might comment, “An authoritative leader inspires confidence and motivates their team.”
A teacher might be described as “authoritative” when they have a commanding presence in the classroom.

20. Unsmiling

This slang term describes someone who is not smiling or showing any signs of happiness. It suggests a lack of joy or amusement.

For example, a person might say, “He remained unsmiling throughout the entire event.”
In a discussion about body language, someone might comment, “An unsmiling face can convey a serious or stern demeanor.”
A photographer might instruct their subject to “look unsmiling” to create a more serious or dramatic image.

21. Severe

This term is used to describe someone who is very stern and uncompromising in their behavior or actions.

For example, a teacher might be described as severe if they have strict rules and punishments for their students.
In a workplace, a severe boss might have high expectations and little tolerance for mistakes.
A parent who is severe might have strict rules and discipline for their children.

22. No-funny-business

This phrase is used to indicate that someone is serious and focused, without any tolerance for jokes or distractions.

For instance, a supervisor might say to their employees, “We need to get this project done on time, so it’s no funny business.”
In a meeting, someone might say, “Let’s stick to the agenda and have no funny business.”
A teacher might warn their students, “During the exam, there will be no funny business allowed.”

23. Iron-willed

This term is used to describe someone who is incredibly strong-willed and determined, often in a stern or uncompromising way.

For example, a leader who never gives up and always follows through on their decisions might be described as iron-willed.
A person who is able to resist temptation and stay focused on their goals might be called iron-willed.
In a difficult situation, someone might say, “We need someone who is iron-willed to lead us through this.”

24. Unemotional

This term is used to describe someone who does not show or express much emotion, often in a stern or serious way.

For instance, a person who rarely smiles or laughs and keeps a straight face might be described as unemotional.
In a sad or emotional situation, someone who remains stoic and does not cry or show much emotion might be seen as unemotional.
A character in a book or movie who rarely shows their emotions might be described as unemotional.

25. Stone-faced

This term is used to describe someone who has a very serious and stern facial expression, often showing no emotion at all.

For example, a person who does not react to jokes or funny situations and always has a serious expression might be called stone-faced.
In a tense or dramatic moment, someone who maintains a serious and unemotional expression might be described as stone-faced.
A poker player who never gives away their emotions through their facial expression might be seen as stone-faced.

26. Brass balls

This slang term refers to someone who is extremely brave or fearless. It is often used to describe a person who is not easily intimidated or shows no signs of fear.

For example, “He walked into that dangerous situation with brass balls.”
Someone might say, “You need brass balls to confront your boss like that.”
Another person might comment, “She has brass balls for taking on such a risky venture.”

27. Cold fish

This slang term is used to describe someone who appears emotionally detached or unresponsive. It suggests that the person lacks warmth or genuine emotions.

For instance, “He always seems like a cold fish, never showing any emotions.”
Someone might say, “She’s a cold fish when it comes to relationships.”
Another person might comment, “I tried to have a conversation with him, but he was a total cold fish.”

28. Steely-eyed

This slang term describes someone who has a focused and determined gaze. It suggests that the person is resolute and unwavering in their actions or decisions.

For example, “He looked at his opponents with steely-eyed determination.”
Someone might say, “She faced the challenge with steely-eyed resolve.”
Another person might comment, “The athlete’s steely-eyed determination led to their victory.”

29. Rigid

This slang term refers to someone who is inflexible or strict in their beliefs, attitudes, or behavior. It suggests that the person is not open to change or compromise.

For instance, “He has a rigid mindset and refuses to consider alternative viewpoints.”
Someone might say, “The company’s policies are too rigid.”
Another person might comment, “She has a rigid approach to parenting.”

30. Stiff upper lip

This slang term describes someone who remains calm and composed, especially in difficult or challenging situations. It suggests that the person does not show their emotions or vulnerability.

For example, “He kept a stiff upper lip during the funeral.”
Someone might say, “You have to have a stiff upper lip when facing criticism.”
Another person might comment, “She maintained a stiff upper lip throughout the entire ordeal.”

31. Grim-faced

When someone is grim-faced, it means they have a serious or stern expression on their face. This term is often used to describe someone who looks unhappy or unapproachable.

For example, “She walked into the room with a grim-faced expression.”
A person might say, “He always looks grim-faced during important meetings.”
In a description of a character, one might write, “The detective had a grim-faced demeanor that intimidated suspects.”

32. Poker-faced

When someone is poker-faced, it means they have a blank or expressionless face. This term is often used to describe someone who is not showing any emotion or reaction.

For instance, “She remained poker-faced throughout the entire conversation.”
A person might comment, “He can keep a poker-faced expression even in the most stressful situations.”
In a description of a professional poker player, one might say, “He has a poker-faced demeanor that makes it hard to read his intentions.”

33. Hard-nosed

When someone is hard-nosed, it means they are tough, stubborn, and uncompromising. This term is often used to describe someone who is determined and unyielding.

For example, “She’s a hard-nosed negotiator who doesn’t back down easily.”
A person might say, “He has a hard-nosed approach to business and doesn’t tolerate any nonsense.”
In a description of a coach, one might write, “The hard-nosed coach pushed his team to their limits.”

34. Backbone

When someone has backbone, it means they have strength, courage, and resilience. This term is often used to describe someone who is firm in their beliefs and can handle difficult situations.

For instance, “She showed great backbone in standing up for what she believed in.”
A person might say, “Having backbone is important when facing challenges and adversity.”
In a description of a leader, one might write, “His backbone and determination inspired his team to overcome obstacles.”

35. Backbone of steel

When someone has a backbone of steel, it means they have unwavering strength and resilience. This term is often used to describe someone who is incredibly strong and unyielding in their convictions.

For example, “She faced adversity with a backbone of steel.”
A person might comment, “His determination and perseverance are like a backbone of steel.”
In a description of a character, one might write, “The protagonist’s backbone of steel allowed them to overcome any obstacle.”

36. Gritty

This term is used to describe someone who is tough, resilient, and has a strong work ethic. It often refers to individuals who are willing to put in the effort and do whatever it takes to succeed.

For example, a coach might say, “She’s a gritty player who never gives up.”
In a discussion about successful entrepreneurs, someone might comment, “They built their empire through sheer grit and determination.”
A coworker might describe a colleague as, “He’s the gritty type who always gets the job done.”

37. Backbone of the team

This phrase refers to the person who is considered the foundation or support system of a team. They are often relied upon to provide stability, leadership, and support to the other members.

For instance, a coach might say, “He’s the backbone of our team, always stepping up when we need him.”
In a discussion about successful teams, someone might comment, “The backbone of a team is often the unsung hero.”
A teammate might express gratitude by saying, “I couldn’t have done it without the backbone of our team.”

38. Backbone of the organization

This phrase refers to the person or group of people who are considered the core or foundation of an organization. They provide the necessary support, structure, and stability for the organization to function effectively.

For example, a manager might say, “Our dedicated employees are the backbone of this organization.”
In a discussion about successful companies, someone might comment, “The backbone of any organization is its employees.”
An employee might express pride by saying, “I’m proud to be part of the backbone of this organization.”

39. Backbone of the family

This phrase refers to the person who is considered the pillar or support system of a family. They are often relied upon to provide emotional and practical support to other family members.

For instance, a parent might say, “She’s the backbone of our family, always there for everyone.”
In a discussion about family dynamics, someone might comment, “The backbone of a family is often the one who holds everyone together.”
A sibling might express gratitude by saying, “I don’t know what I would do without the backbone of our family.”

40. Backbone of the community

This phrase refers to the person or group of people who are considered the foundation or support system of a community. They play a vital role in maintaining and strengthening the community through their active involvement and dedication.

For example, a community leader might say, “Volunteers are the backbone of our community, making positive changes.”
In a discussion about community development, someone might comment, “The backbone of a community is its residents who care and take action.”
A neighbor might express appreciation by saying, “Thank you for being the backbone of our community.”

41. Ramrod straight

This phrase is used to describe someone who maintains an extremely straight and rigid posture, often indicating a strict and serious demeanor.

For example, a military officer might be described as having “ramrod straight posture.”
In a formal setting, someone might be advised to “stand ramrod straight during the presentation.”
A teacher might tell a student, “Sit up straight and be ramrod straight during the exam.”

42. Rigid as a board

This phrase is used to describe someone who is very inflexible, both in terms of physical posture and personality.

For instance, a strict boss might be described as “rigid as a board.”
In a discussion about discipline, someone might say, “She runs her classroom with a rigid as a board approach.”
A person might describe themselves as “rigid as a board when it comes to following rules.”

43. Ice queen

This term is used to describe a woman who appears to be emotionally distant and uninterested in forming personal connections.

For example, a character in a movie might be described as an “ice queen” due to her aloof behavior.
In a discussion about relationships, someone might say, “She’s beautiful, but she has a reputation for being an ice queen.”
A person might jokingly say, “Watch out for her, she’s the ice queen of the office.”

44. Steel-willed

This phrase is used to describe someone who possesses a strong and unyielding determination to achieve their goals.

For instance, a successful entrepreneur might be described as “steel-willed.”
In a discussion about overcoming obstacles, someone might say, “You need to be steel-willed to succeed in this industry.”
A person might describe themselves as “steel-willed” when talking about their ability to persevere through difficult times.

45. No fooling around

This phrase is used to indicate that someone is being serious and focused, without engaging in any playful or distracting behavior.

For example, a coach might say to their team, “We need to be no fooling around during practice if we want to win.”
In a discussion about productivity, someone might say, “When I have a deadline, it’s no fooling around until the work is done.”
A parent might tell their child, “No fooling around, it’s time to do your homework.”

46. Heart of stone

When someone is described as having a “heart of stone,” it means they are unemotional or lacking empathy. This phrase is often used to describe someone who is cold or unfeeling.

For example, “She didn’t shed a tear at the funeral; she has a heart of stone.”
When discussing a difficult boss, someone might say, “He never shows any compassion for his employees; he has a heart of stone.”
In a romantic context, someone might say, “He broke my heart and showed no remorse; he has a heart of stone.”