profligate vs libertine

profligate and libertine both are nouns.

Word	Noun	Adjective	Verb	Adverb
profligate	Yes	Yes	No	No
libertine	Yes	Yes	No	No

As adjectives, profligate and libertine are synonyms defined as:

Other synonyms of profligate include debauched, degenerate, degraded, dissipated, dissolute, fast, riotous.

As nouns, libertine is a hypernym of profligate; that is, libertine is a word with a broader meaning than profligate:

Other hypernyms of profligate include debauchee, rounder.

profligate (noun)	libertine (noun)
a dissolute man in fashionable society	a dissolute person; usually a man who is morally unrestrained
a recklessly extravagant consumer

profligate (adjective)	libertine (adjective)
unrestrained by convention or morality	unrestrained by convention or morality
recklessly wasteful