Nouns

(n)wantonlewd or lascivious woman

Verbs

(v)piddle, wanton, wanton away, piddle away, triflewaste time; spend one's time idly or inefficiently
(v)wantonindulge in a carefree or voluptuous way of life
(v)wanton, wanton away, trifle awayspend wastefully“wanton one's money away”
(v)luxuriate, wantonbecome extravagant; indulge (oneself) luxuriously
(v)wantonengage in amorous play
(v)wantonbehave extremely cruelly and brutally

Adjectives

(s)motiveless, unprovoked, wantonoccurring without motivation or provocation“motiveless malignity”, “unprovoked and dastardly attack” (F.D.Roosevelt)
(s)easy, light, loose, promiscuous, sluttish, wantoncasual and unrestrained in sexual behavior“her easy virtue”, “he was told to avoid loose (or light) women”, “wanton behavior”