顽皮 wánpí
(1) [mischievous;naughty]∶贪玩爱闹,不听劝导
顽皮的小孩
(2) [cunning and stubborn]∶性情刁顽
长舌顽皮村妇
(3) [hard shell]∶指鱼甲的坚硬顽钝