libertinism vs indecency

libertinism and indecency both are nouns.

Word	Noun	Adjective	Verb	Adverb
libertinism	Yes	No	No	No
indecency	Yes	No	No	No

As nouns, indecency is a hypernym of libertinism; that is, indecency is a word with a broader meaning than libertinism:

libertinism: A lifestyle or pattern of behavior characterized by self-indulgence and lack of restraint, especially one involving sexual promiscuity and rejection of religious or other moral authority.
indecency: the quality of being indecent

libertinism (noun)	indecency (noun)
A lifestyle or pattern of behavior characterized by self-indulgence and lack of restraint, especially one involving sexual promiscuity and rejection of religious or other moral authority.	an indecent or improper act
	the quality of being indecent