Synonyms and related words :
animated, artifice, bizarre, caper, capersome, caracole, carry on, casual, cavort, coltish, comic, comical, curvet, cut a dido, cut capers, cut up, dance, disport, easy, exuberant, fanciful, fantastic, farcical, flounce, fool around, foolish, frisk, frisky, frolic, frolicsome, full of beans, gambol, gamesome, gay, grotesque, hearty, horse around, impossible, incomprehensible, inconceivable, incredible, lark, laughable, light, lively, ludicrous, mischievous, monkeyshine, monkeyshines, play, playful, practical joke, prank, prankish, pranky, roguish, rollick, rollicking, rollicksome, romp, rompish, shenanigan, shenanigans, shines, skip, skittish, spirited, sport, sportive, sprightly, suave, tomfoolery, trick, trip, unaccountable, unbelievable, unexpected, unimaginable, vital, vivacious, waggish trick, whimsical, wile, zestful, zippy