Synonyms of funnier

1 Syllable
riot, gay, droll, rich, gas
2 Syllables
blithe, jolly, slapstick, silly, antic, witty, merry, mirthful, screaming, riotous, clever, absurd, playful, joking, waggish, killing
3 Syllables
diverting, capricious, sportive, farcical, risible, priceless, humdinger, gelastic, whimsical, ludicrous, facetious, knee-slapper, side-splitting, jocular, amusing, hilarious, jocose, laughable
4 Syllables
entertaining, ridiculous, hysterical, good-humored