behaviours Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition plural noun. actions or reactions of a person or animal. Example Sentence It's funny how sometimes the behaviours of children are like animals. More Example Sentences Good behaviours lead to a positive environment. Synonyms actions; conduct; demeanor Antonyms not moving Hear It! Say It! Write It! behaviours Switch to cursive Start Share with your friends: