1.
[syn: badly, mischievously, naughtily]
The Collaborative International Dictionary of English v.0.48:
Mischievous \Mis"chie*vous\ (m[i^]s"ch[-e]*v[u^]s), 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.
[1913 Webster]
This false, wily, doubling disposition is intolerably
mischievous to society. --South.
[1913 Webster]
Syn: Harmful; hurtful; detrimental; noxious; pernicious;
destructive.
[1913 Webster] -- Mis"chie*vous*ly, adv. --
Mis"chie*vous*ness, n.
[1913 Webster]
WordNet (r) 3.0 (2006):
mischievously
adv 1: in a disobedient or naughty way; "he behaved badly in
school"; "he mischievously looked for a chance to
embarrass his sister"; "behaved naughtily when they had
guests and was sent to his room" [syn: badly,
mischievously, naughtily]