Definitions

behavior

[bih-heyv-yer] / bɪˈheɪv jər /

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.

"Behavior is a wonderfully integrated readout, reflecting what's happening across the brain and body," said Brunet, the Michele and Timothy Barakett Professor of Genetics at Stanford Medicine.

From Science Daily • Mar. 26, 2026

"Everyone has seen a street musician or a performer adjust to a changing crowd," said Nieh, a faculty member in the Department of Ecology, Behavior and Evolution.

From Science Daily • Mar. 24, 2026

Meanwhile, the cover of “The Behavior Gap,” his 2012 bestseller, features a roller-coaster line showing the ups and downs of greed and fear.

From MarketWatch • Mar. 16, 2026

"Even small changes in their environment can make them suspicious," said Loretto, who is at the University of Veterinary Medicine in Vienna, and began the research at the Max Planck Institute of Animal Behavior.

From Barron's • Mar. 12, 2026

A prize for her children in the Indo-British Behavior Competition.

From "The God of Small Things" by Arundhati Roy

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!