WordNet sense 1 (a dissolute man in fashionable society):

blood, rake, rip, roue, rakehell

WordNet sense 2 (a recklessly extravagant consumer):

prodigal, squanderer

WordNet sense 3 (recklessly wasteful):

extravagant, spendthrift

WordNet sense 4 (tending to squander and waste):

wasteful

WordNet sense 5 (unrestrained by convention or morality):

debauched, degenerate, dissipated, dissolute, fast, libertine, riotous, degraded, degenerate

WordNet sense 6 (deliberately violating accepted principles of right and wrong):

immoral