wanton adj
1 abandoned, dissipated, dissolute, fast, immoral, lecherous, lewd, libertine, libidinous, licentious, loose, lustful, of easy virtue, promiscuous, rakish, shameless, unchaste
2 arbitrary, cruel, evil, gratuitous, groundless, malevolent, malicious, motiveless, needless, senseless, spiteful, uncalled-for, unjustifiable, unjustified, unprovoked, vicious, wicked, wilful
3 careless, devil-may-care, extravagant, heedless, immoderate, intemperate, lavish, outrageous, rash, reckless, unrestrained, wild n
4 Casanova, debauchee, Don Juan, gigolo, harlot, lech or letch (informal) lecher, libertine, loose woman, profligate, prostitute, rake, roué, scrubber (Brit. & Austral. slang) slag (Brit. slang) slut, strumpet, tart (informal) trollop, voluptuary, whore, woman of easy virtue vb
5 debauch, dissipate, revel, riot, sleep around (informal) wench (archaic) whore
6 fritter away, misspend, squander, throw away, waste
1 overmodest, priggish, prim, prudish, puritanical, rigid, strait-laced, stuffy, Victorian
2 called-for, excusable, justified, legitimate, motivated, provoked, warranted
3 cautious, circumspect, guarded, inhibited, moderate, prudent, reserved, restrained, temperate