1. lewd or lascivious person; pampered person; one who is flirtatious. act lewd; behave wildly; waste irresponsibly. spiteful; arbitrary, unjustified; reckless, lawless; immoral, obscene; permissive; mischievous, playful; wasteful. wantonwanton , a. [oe. wantoun, contr. from wantowen; pref. wan- wanting (see: wane, v. i.), hence expressing negation + towen, p. p., as. togen, p. p. of te?n to draw, to educate, bring up; hence, properly, ill bred. see: tug, v. t.]