profligacy vs licentiousness

profligacy and licentiousness both are nouns.

Word	Noun	Adjective	Verb	Adverb
profligacy	Yes	No	No	No
licentiousness	Yes	No	No	No

As nouns, profligacy and licentiousness are synonyms defined as:

Other synonyms of profligacy include dissipation, dissolution, looseness.

profligacy (noun)	licentiousness (noun)
dissolute indulgence in sensual pleasure	dissolute indulgence in sensual pleasure
the trait of spending extravagantly	the quality of being lewd and lascivious