Pronunciation: (won'tn),[key] —adj. 1. done, shown, used, etc., maliciously or unjustifiably: a wanton attack; wanton cruelty. 2. deliberate and without motive or provocation; uncalled-for; headstrong; willful: Why jeopardize your career in such a wanton way? 3. without regard for what is right, just, humane, etc.; careless; reckless: a wanton attacker of religious convictions. 4. sexually lawless or unrestrained; loose; lascivious; lewd: wanton behavior. 5. extravagantly or excessively luxurious, as a person, manner of living, or style.
6. luxuriant, as vegetation.
7. Archaic. a. sportive or frolicsome, as children or young animals.
b. having free play: wanton breezes; a wanton brook.
—n. a wanton or lascivious person, esp. a woman.
—v.i. to behave in a wanton manner; become wanton.
—v.t. to squander, esp. in pleasure (often fol. by away): to wanton away one's inheritance.