adulterousness vs immorality

adulterousness and immorality both are nouns.

Word	Noun	Adjective	Verb	Adverb
adulterousness	Yes	No	No	No
immorality	Yes	No	No	No

As nouns, immorality is a hypernym of adulterousness; that is, immorality is a word with a broader meaning than adulterousness:

adulterousness: The quality of being adulterous, involving sexual intercourse by a married person with someone other than their spouse.
immorality: the quality of not being in accord with standards of right or good conduct

Other hypernyms of adulterousness include infidelity, unfaithfulness.

adulterousness (noun)	immorality (noun)
The quality of being adulterous, involving sexual intercourse by a married person with someone other than their spouse.	morally objectionable behavior
	the quality of not being in accord with standards of right or good conduct