mischievous mischievous /ˈmɪstʃəvəs/

adjective

1. () Naughtily or annoyingly playful  ( arch , impish , pixilated , mischievous , prankish , puckish , wicked [Informal] , pixillated , scampish , implike )
   naughtily or annoyingly playful
    Teasing and worrying with impish laughter
   teasing and worrying with impish laughter
    A wicked prank
   a wicked prank
   
2. Deliberately causing harm or damage  ( mischievous )
   deliberately causing harm or damage
    Mischievous rumors and falsehoods
   mischievous rumors and falsehoods