Definitions

behavior

[bih-heyv-yer] / bɪˈheɪv yər /

NOUN

manner of conducting oneself

Synonyms

STRONGEST

act action attitude conduct demeanor management nature performance practice presence role style

STRONG

address air bag bearing carriage code comportment convention course dealings decency decorum deed delivery deportment ethics etiquette expression form front guise habits mien mode morals observance propriety ritual routine savoir-faire seemliness speech tact talk taste tone way ways

WEAK

social graces tenue way of life what's done

Antonyms

STRONGEST

cessation idleness inactivity inertia repose rest stoppage

STRONG

bad manners carelessness immorality impropriety indecency listening quiet silence thoughtlessness

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.

The V-shaped trading pattern of the last 24 hrs reflects in part the behavior of the Philadelphia Semiconductor Index SOX, the broad movements of which Korea’s market has been tracking for some time.

From MarketWatch • Jun. 9, 2026

Mice showed far less lose-shift behavior, making them less likely to adjust their decisions after an unexpected outcome.

From Science Daily • Jun. 8, 2026

Retailers could soon charge people different prices for the same merchandise based on their online behavior.

From The Wall Street Journal • Jun. 6, 2026

“I feel terrible about what happened. I feel really bad about my actions and some of the terrible behavior I did,” he said.

From Los Angeles Times • Jun. 6, 2026

All of these behaviors can mean something entirely different in another culture, but all cultures have listening behavior.

From "Phineas Gage" by John Fleischman

Vocabulary lists containing behavior

"Julius Caesar" by William Shakespeare, Act I

Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!

Growth, Development and Reproduction of Organisms - Middle School

Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!

Growth, Development and Reproduction of Organisms - Introductory

Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!