From WordNet (r) 3.0 (2006):
antic
adj 1: ludicrously odd; "Hamlet's assumed antic disposition";
"fantastic Halloween costumes"; "a grotesque reflection
in the mirror" [syn: antic, fantastic, fantastical,
grotesque]
n 1: a ludicrous or grotesque act done for fun and amusement
[syn: antic, joke, prank, trick, caper, put-on]
v 1: act as or like a clown [syn: clown, clown around,
antic]