atrociousness vs barbarity

atrociousness and barbarity both are nouns.

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

As nouns, atrociousness and barbarity are synonyms defined as:

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

Other synonyms of atrociousness include atrocity, barbarousness, heinousness.

atrociousness (noun)	barbarity (noun)
the quality of being shockingly cruel and inhumane	a brutal barbarous savage act
	the quality of being shockingly cruel and inhumane