Synonyms and antonyms of Silly behavior in American Thesaurus

antics (noun)

behavior that is funny or silly in an enjoyable way

frivolity (noun)

silly behavior or attitudes

crank (noun)

used about someone’s behavior or actions

antics (noun)

behavior that is considered to be deliberately stupid and likely to cause problems

stunt (noun)

something silly or unusual that is done to get public attention

shenanigans (noun)

informal silly, dishonest, or immoral behavior

brainstorm (noun)

British a situation in which you cannot think clearly so that you do or say something silly

aberration (noun)

formal a short time when someone behaves in a very strange or careless way

tomfoolery (noun)

old-fashioned behavior that is not sensible