unrighteousness vs immorality

unrighteousness and immorality both are nouns.

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

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

unrighteousness: failure to adhere to moral principles
immorality: the quality of not being in accord with standards of right or good conduct

unrighteousness (noun)	immorality (noun)
failure to adhere to moral principles	morally objectionable behavior
	the quality of not being in accord with standards of right or good conduct