heinousness vs atrociousness

heinousness and atrociousness both are nouns.

Word	Noun	Adjective	Verb	Adverb
heinousness	Yes	No	No	No
atrociousness	Yes	No	No	No

As nouns, heinousness and atrociousness are synonyms defined as:

heinousness and atrociousness: the quality of being shockingly cruel and inhumane

Other synonyms of heinousness include atrocity, barbarity, barbarousness.

heinousness (noun)	atrociousness (noun)
the quality of being shockingly cruel and inhumane	the quality of being shockingly cruel and inhumane