In 15 Seconds
- Someone who encourages you to make poor or risky choices.
- Often used jokingly among friends to blame them for fun mistakes.
- Can be used seriously by parents regarding their children's peers.
Meaning
This phrase describes a person or thing that encourages you to do bad, risky, or silly things you wouldn't normally do. It is often used when someone makes you stay out too late or spend too much money.
Key Examples
3 of 6Talking about a friend who likes to party
I was going to sleep early, but Sarah is such a bad influence!
I was going to sleep early, but Sarah is such a bad influence!
A mother talking about her son's new friend
I'm worried that those older boys are a bad influence on him.
I'm worried that those older boys are a bad influence on him.
Texting a friend about shopping
Stop showing me new shoes! You are a total bad influence on my bank account.
Stop showing me new shoes! You are a total bad influence on my bank account.
Cultural Background
In the US, 'bad influence' is a very common trope in 'coming-of-age' movies (like 'Mean Girls' or 'The Breakfast Club'), where a 'rebel' character influences a 'good' character. British English uses 'bad influence' similarly, but might also use 'a bad lot' or 'a bad egg' to describe the person themselves in a more old-fashioned way. In cultures like China or Japan, the concept of 'saving face' and family reputation means being a 'bad influence' is seen as a serious moral failing that reflects on the whole family. On social media, being a 'bad influence' is often rebranded as being 'fun' or 'chaotic.' It's a badge of honor for friends who encourage each other to live 'main character' lives.
Use it playfully
Don't be afraid to use this with friends when you're doing something slightly 'naughty' like eating extra dessert. It's a great way to sound natural.
The 'ON' rule
Always remember the preposition 'on'. Using 'to' is the most common mistake that identifies you as a learner.
In 15 Seconds
- Someone who encourages you to make poor or risky choices.
- Often used jokingly among friends to blame them for fun mistakes.
- Can be used seriously by parents regarding their children's peers.
What It Means
Bad influence describes someone who leads you toward poor choices. It is not always about serious crimes or danger. Often, it is about small, fun, but 'naughty' things. Think of a friend who convinces you to skip the gym for pizza. That friend is a bad influence. It implies that your behavior changes because of them. You were good, but they made you 'bad.'
How To Use It
You can use it as a noun to describe a person. For example, 'He is a bad influence on me.' You can also use it to describe a thing, like a TV show or a habit. It usually follows the verb to be. Sometimes we use it playfully to flirt or joke with friends. It sounds like a lighthearted accusation.
When To Use It
Use it when a friend talks you into a second dessert. Use it when your sibling helps you sneak out of the house. It works well in casual conversations about social life. You might hear parents use it seriously about their children's friends. In a professional setting, it describes a coworker who encourages laziness. It is great for storytelling about a wild night out.
When NOT To Use It
Do not use it for someone who is truly dangerous or evil. That is too heavy for this phrase. Avoid using it in very formal legal documents. It sounds a bit too subjective and conversational for a courtroom. Don't use it if you are the one who made the choice alone. You need a 'partner in crime' to use this phrase properly.
Cultural Background
In Western culture, this phrase is a classic 'parental' warning. Many movies show a 'good kid' meeting a bad influence rebel. However, among young adults, it is often a badge of honor. Calling a friend a bad influence usually means you have a lot of fun together. It suggests a break from the boring rules of adult life. It is the 'devil on your shoulder' in human form.
Common Variations
You might hear people say good influence for someone who helps you. Some people say 'a terrible influence' to add more drama. You can also say someone is 'influencing me' in a negative way. A common slang version is calling someone a 'corrupter.' But bad influence remains the most popular and versatile choice for daily English.
Usage Notes
This phrase is very safe to use in most contexts. Just be careful with your tone—smiling makes it a joke, while a serious face makes it a real accusation.
Use it playfully
Don't be afraid to use this with friends when you're doing something slightly 'naughty' like eating extra dessert. It's a great way to sound natural.
The 'ON' rule
Always remember the preposition 'on'. Using 'to' is the most common mistake that identifies you as a learner.
The 'Such a' pattern
We often add 'such a' for emphasis: 'You are SUCH a bad influence!'
Parental usage
If a native speaker's parent says someone is a 'bad influence,' they are usually being very serious. Be careful how you respond!
Examples
6I was going to sleep early, but Sarah is such a bad influence!
I was going to sleep early, but Sarah is such a bad influence!
Used here to jokingly blame a friend for staying out late.
I'm worried that those older boys are a bad influence on him.
I'm worried that those older boys are a bad influence on him.
A serious use expressing concern about behavior.
Stop showing me new shoes! You are a total bad influence on my bank account.
Stop showing me new shoes! You are a total bad influence on my bank account.
Humorous way to say someone is making you spend money.
His constant complaining is becoming a bad influence on the rest of the team.
His constant complaining is becoming a bad influence on the rest of the team.
Professional context regarding office morale.
Please sit elsewhere; you're being a bad influence on your classmates today.
Please sit elsewhere; you're being a bad influence on your classmates today.
Formal but direct instruction in a classroom.
I realized later that he was a bad influence and I needed to move on.
I realized later that he was a bad influence and I needed to move on.
Personal reflection on personal growth.
Test Yourself
Fill in the missing preposition.
My parents are worried that my new friend is a bad influence ____ me.
The standard collocation is 'a bad influence ON someone'.
Which sentence is the most natural?
Choose the correct sentence:
This follows the 'to be a bad influence on' pattern with the correct article and preposition.
Match the response to the situation.
Your friend suggests skipping your gym session to go get ice cream. What do you say?
'Bad influence' is the idiomatic way to joke about a friend leading you away from your goals.
Complete the dialogue.
A: 'I've started staying out until 3 AM since I met Sarah.' B: 'Wow, she sounds like a ________.'
The context of changing behavior for the worse points directly to 'bad influence'.
Match the opposites.
Match the phrase with its opposite.
The direct opposite of a bad influence is a good influence.
🎉 Score: /5
Visual Learning Aids
Formal vs. Informal
Common Bad Influences
People
- • Rebellious friends
- • Older siblings
- • Cool strangers
Media
- • Violent movies
- • Social media
- • Video games
Practice Bank
5 exercisesMy parents are worried that my new friend is a bad influence ____ me.
The standard collocation is 'a bad influence ON someone'.
Choose the correct sentence:
This follows the 'to be a bad influence on' pattern with the correct article and preposition.
Your friend suggests skipping your gym session to go get ice cream. What do you say?
'Bad influence' is the idiomatic way to joke about a friend leading you away from your goals.
A: 'I've started staying out until 3 AM since I met Sarah.' B: 'Wow, she sounds like a ________.'
The context of changing behavior for the worse points directly to 'bad influence'.
Match each item on the left with its pair on the right:
The direct opposite of a bad influence is a good influence.
🎉 Score: /5
Frequently Asked Questions
12 questionsYes! You can say 'TV is a bad influence' or 'That neighborhood was a bad influence.'
It depends. Between friends, it's often a compliment meaning 'you are fun.' From a parent, it is an insult.
A 'good influence.'
Yes, but it sounds more formal and less natural than 'he was a bad influence on me.'
It is always 'bad influence ON'.
Probably not. It sounds a bit too casual and personal. Use 'negative impact' instead.
No, it is two words: an adjective (bad) and a noun (influence).
They are joking! They mean you are tempting them to break their diet.
Extremely. It's a very common way to describe characters who cause trouble.
It's better to say 'on my kids,' though 'for' is occasionally heard, it's less standard.
A 'role model' is someone you try to copy. A 'bad influence' is someone who actively encourages you to do bad things.
Usually 'a bad influence' unless you are talking about a specific one already mentioned.
Related Phrases
good influence
contrastA person who encourages positive behavior.
lead someone astray
similarTo make someone do something wrong or unwise.
peer pressure
builds onThe feeling that you must do the same things as people your age.
role model
contrastA person looked to by others as an example to be imitated.
partner in crime
similarA person you do something fun or slightly 'bad' with.