Mischievous
Pronunciation : Mis"chie*vous
Part of Speech : a.
Definition : Defn: Causing mischief; harmful; hurtful; -- now often applied where the evil is done carelessly or in sport; as, a mischievous child. "Most mischievous foul sin." Shak. This false, wily, doubling disposition is intolerably mischievous to society. South.
Syn. -- Harmful; hurtful; detrimental; noxious; pernicious; destructive. -- Mis"chie*vous*ly, adv. -- Mis"chie*vous*ness, n.
Source : Webster's Unabridged Dictionary, 1913