adj. 1 clownish, mad, wild, frolicsome, sportive, playful, gay, merry, slapstick, crazy, funny, comic(al), amusing, hilarious, absurd, nonsensical, ludicrous, silly, foolish, inane, Colloq wacky, loony, madcap, crackpot, nutty, goofy, US kooky The buskers put on the zaniest show I have seen for some time
n. 2 clown, comic, jester, fool, joker, buffoon, wag, comedian, merry andrew, laughing-stock, Slang nut, US screwball The two zanies kept the crowd in stitches while the pickpockets stole their wallets