Synonyms of side-splitting

1 Syllable

queer, schtick, odd, gump, droll, slaying

2 Syllables

splitting, foolish, strange, goofus, absurd, funnier, funniest, boffo, funny

3 Syllables

diverting, incongruous, farcical, risible, fool-headed, ludicrous, humorous, amusing, hilarious, comical, laughable

4 Syllables

entertaining, recreative, ridiculous, preposterous