inhumanity vs enormity

inhumanity and enormity both are nouns.

Word	Noun	Adjective	Verb	Adverb
inhumanity	Yes	No	No	No
enormity	Yes	No	No	No

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

Other hyponyms of inhumanity include barbarism, barbarity, brutality, savagery, outrage.

inhumanity (noun)	enormity (noun)
an act of atrocious cruelty	an act of extreme wickedness
the quality of lacking compassion or consideration for others	the quality of extreme wickedness
	the quality of being outrageous
	vastness of size or extent