libertine vs profligate

libertine and profligate both are nouns.

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

As adjectives, libertine and profligate are synonyms defined as:

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

As nouns, profligate is a hyponym of libertine; that is, profligate is a word with a more specific, narrower meaning than libertine:

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

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