wanton

spend wastefully

“wanton one's money away”

become extravagant; indulge (oneself) luxuriously

waste time; spend one's time idly or inefficiently

occurring without motivation or provocation

casual and unrestrained in sexual behavior

“wanton behavior”

behave extremely cruelly and brutally

engage in amorous play

indulge in a carefree or voluptuous way of life

lewd or lascivious woman