silly Synonyms

ridiculous goofy giddy foolish cockamamie daft dizzy fatuous featherbrained empty-headed airheaded zany witless wacky unwise laughable childish frivolous brainless absurd waggish vertiginous vacuous unreasonable trivial trifling tomfool bonkers witty barmy muddleheaded addlepated addlebrained slapstick cockeyed scatty ill-advised silly as a goose thoughtless thick-headed swooning sillily shallow senseless sardonic sappy risible reckless rash punchy