knavish

tending to or exhibiting reckless playfulness a knavish bunch of urchins racing pell-mell through the marketplace Synonyms arch, devilish, elvish, espiègle, impish, mischievous, leprechaunish, pixie (also pixy), pixieish, prankish, puckish, rascally, roguish, scampish, sly, tricksy, waggish, wickedRelated Words antic, coltish, coy, frisky, frolicsome, kittenish, playful, sportful, sportive; gay, happy, lighthearted, whimsical; energetic, lively, spirited, sprightly; artful, crafty, cunning, trickish, tricky, wily; misbehaving, naughty, troublemaking; pestering, riling, teasingNear Antonyms grave, grim, sedate, sober, solemn, staid, stern