- 1[uncountable] the way that someone behaves, especially toward other people good/bad behavior social/sexual/criminal behavior His behavior toward her was becoming more and more aggressive.
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- 2[uncountable, countable] the way a person, an animal, a plant, a chemical, etc. behaves or functions in a particular situation the behavior of dolphins/chromosomes studying human and animal behavior (technology) to study learned behaviors Idioms
to behave in the most polite way you can
NAmE//bɪˈheɪvyərəl//
adjective children with behavioral difficulties behavioral science (= the study of human behavior) adverb
Check pronunciation: behavior