barbarity vs heinousness

barbarity and heinousness both are nouns.

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

As nouns, barbarity and heinousness are synonyms defined as:

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

Other synonyms of barbarity include atrociousness, atrocity, barbarousness.

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