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Synonyms

misbehavior

American  
[mis-bi-heyv-yer] / ˌmɪs bɪˈheɪv jər /
especially British, misbehaviour

noun

misbehaviors plural
  1. improper, inappropriate, or bad behavior.


Other Word Forms

Noun Inflected Forms

Etymology

Origin of misbehavior

First recorded in 1480–90; mis- 1 + behavior

Explanation

When you do something wrong or bad, that's misbehavior. If your little brother hides your homework, intentionally dumps his cereal on the floor, and draws on the walls with permanent marker, you might say he's an expert in misbehavior. Whether an activity is mere naughtiness or more significant misconduct, it all falls under the category of misbehavior. When a politician pays someone to stay quiet about his misbehavior, he's added additional misbehavior to the record. If you know that behavior means the way you act, it's easy to see what happens when you add the prefix mis-, meaning "bad".

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The dirt-bike culture of the 1970s eventually faced its own reckoning when misbehavior, noise complaints and safety concerns led to a spate of restrictions.

From The Wall Street Journal Jun. 7, 2026

It’s 1983 in Galashiels, Scotland, and his involuntary movements and outbursts are seen as misbehavior, teenage rebellion, and treated in kind.

From Los Angeles Times Apr. 24, 2026

She understood that despite the character’s misbehavior in the series — like breaking into her boss’ office — she’s decently good at her job.

From Los Angeles Times Feb. 26, 2026

The Gateway Pundit The Gateway Pundit often makes lazy mistakes: It once falsely accused a Washington Post editor of misbehavior during a confirmation hearing when that reporter wasn’t at that hearing.

From Slate Oct. 24, 2025

No one was lecturing us about misbehavior or consequences.

From "The Season of Styx Malone" by Kekla Magoon

Tellingly, this is the only time you really see Tomas at work, but his personal and professional misbehaviors turn out to be very much of a piece.

From Los Angeles Times Aug. 2, 2023

In December, the principal ordered a disciplinary hearing, citing his "multiple misbehaviors."

From Salon Dec. 22, 2022

BlackRock Inc Chief Executive Larry Fink said on Wednesday that there appear to have been "misbehaviors" by the now-bankrupt FTX crypto exchange, but that the technology behind crypto is relevant for the future.

From Reuters Nov. 30, 2022

Sasha Sloan begins this song detailing a laundry list of misbehaviors and irritations, a knowing confession of failure to rise to the responsibilities of a relationship.

From New York Times Apr. 23, 2021

But, after all, young Dalhousie's dissolute misbehaviors were so well known, nobody could possibly ...

From V. V.'s Eyes by Harrison, Henry Sydnor

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