(obsolete) nocive; pernicious / (medicine) malignant / (chiefly dated or biblical) malicious, sadistic (which likes to do or say hurtful things for fun) / (informal) smart and quick-thinking, and often tricksterish; cunning, crafty / (Quebec) Said of an aggressive animal or a petulant person

trickster, smart person

the Devil

one will always find a cleverer or stronger person than oneself

(informal) to get wise, get cute, to act smart, to try to be clever, to be impertinent

(simile) smart as a whip (very smart, very shrewd, very clever)

(informal) pride comes before a fall

Alternative spelling of qui fait le malin tombe dans le ravin

delicate, fragile, puny

masculine plural of malin