"libertine" in the noun sense
1. libertine, debauchee, rounder
a dissolute person usually a man who is morally unrestrained
"libertine" in the adjective sense
1. debauched, degenerate, degraded, dissipated, dissolute, libertine, profligate, riotous, fast
unrestrained by convention or morality
"Congreve draws a debauched aristocratic society"
"deplorably dissipated and degraded"
"riotous living"
"fast women"
Source: WordNet® (An amazing lexical database of English)
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