Synonyms and Antonyms of silly (sĭlē)

ridiculous goofy asinine childlike inane ludicrous muddleheaded fatuous simpleminded loopy brainless preposterous crazy insensate wacky vacuous puerile dippy ditzy sappy weak-minded witless lighthearted funny inept pathetic senseless foolish zany empty-headed irrational insane lunatic softheaded tomfool jerky pointless slaphappy airheaded cuckoo dumb foppish giddy imbecile unreasonable whacky harebrained featherbrained frivolous idiotic flighty dizzy punch-drunk illogical birdbrained mindless imbecilic scatterbrained gaga unwise light-headed lightheaded cockamamie cockamamy absurd balmy cockeyed mad moronic unearthly loony frothy trivial shallow childish daft dazed half-witted simple simpleton nonsensical stupid unintelligent dopey

sensible wise rational mature practical mundane serious

knowledge ability planned weird scary boring naughty naff cheesy corny rude

silly ₈ slily ₈ yills ₈

illy ₇ lily ₇ syli ₇ yill ₇ ills ₄ sill ₄

sly ₆ ill ₃ lis ₃

is ₂ li ₂ si ₂