heinousness vs barbarousness

heinousness and barbarousness both are nouns.

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

As nouns, heinousness and barbarousness are synonyms defined as:

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

Other synonyms of heinousness include atrociousness, atrocity, barbarity.

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