Synonyms of ridiculous

1 Syllable

schtick, daft, droll, gump

2 Syllables

wacky, witty, goofy, ill-bred, loopy, wittier, funnier, boffo, daffy, funny, tomfool, campy, sillier, witless, ungrown, nutty, sappy, comic, droller, punning, laughing, jerky, screamer, silly, antic, rioter, dafter, dottier, nuttiest, daftest, absurd, suspect, dippy, funniest, silliest, nuttier, laffer, dotty, foolish, goofus, har-har, campiest

3 Syllables

outrageous, off-the-wall, farcical, risible, senseless, unearthly, bizarre, grotesque, inanest, inane, gelastic, foolheaded, slaphappy, outlandish, hilarious, comical, softheaded, fantastic, puerile, doubtable, fool-headed, ludicrous, facetious, side-splitting, indecent, laughable, ironic

4 Syllables

contemptible, irrational, preposterous, undecorous, extravagant, incredible, harebrained, cockamamy, muddleheaded, unreasoning, cockamamie, derisory, nonsensical, fantastical, babylike, imbecilic, impossible, bedlamite, double-edged

5 Syllables

paradoxical, hyperphysical, unbelievable

6 Syllables

uncomplimentary