atrocity vs enormity

atrocity and enormity both are nouns.

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

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

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

atrocity (noun)	enormity (noun)
an act of atrocious cruelty	an act of extreme wickedness
the quality of being shockingly cruel and inhumane	the quality of extreme wickedness
	the quality of being outrageous
	vastness of size or extent