heinousness heinously • heintzite · · · Info · Definitions · Synonyms · Characters · · heinousness · · Text Latin · · Script 11 · · Length Definitions · · · (noun) the quality of being shockingly cruel and inhumane. Synonyms: atrocity, atrociousness, barbarity, barbarousness. · · Noun Definition 1 Synonyms · · · atrocity · · Synonym 1 atrociousness · · Synonym 2 barbarity · · Synonym 3 barbarousness · · Synonym 4 Characters · · e latin small letter e U+0065 h latin small letter h U+0068 i latin small letter i U+0069 n latin small letter n U+006E o latin small letter o U+006F s latin small letter s U+0073 u latin small letter u U+0075