What is the meaning of wanton?

noun

• Lewd or lascivious woman.

verb

• Waste time; spend one's time idly or inefficiently.
  • synonyms: piddle, wanton away, piddle away, trifle
• Indulge in a carefree or voluptuous way of life.
• Spend wastefully.
  • usage: "wanton one's money away"
  • synonyms: wanton away, trifle away
• Become extravagant; indulge (oneself) luxuriously.
  • synonyms: luxuriate
• Engage in amorous play.
• Behave extremely cruelly and brutally.

adjective

• Occurring without motivation or provocation."motiveless malignity"; "unprovoked and dastardly attack- F. D. Roosevelt
  • synonyms: motiveless, unprovoked
• Casual and unrestrained in sexual behavior.
  • usage: "her easy virtue"; "he was told to avoid loose (or light) women"; "wanton behavior"
  • synonyms: easy, light, loose, promiscuous, sluttish