heinousness vs barbarity

heinousness and barbarity both are nouns.

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

As nouns, heinousness and barbarity are synonyms defined as:

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

Other synonyms of heinousness include atrociousness, atrocity, barbarousness.

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