Mis"chie*vous (?), a.
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.
© Webster 1913.