barbarousness barbarously • Barbary · · · Info · Definitions · Synonyms · Characters · · barbarousness · · Text Latin · · Script 13 · · Length Definitions · · · (noun) the quality of being shockingly cruel and inhumane. Synonyms: atrocity, atrociousness, barbarity, heinousness. · · Noun Definition 1 Synonyms · · · atrocity · · Synonym 1 atrociousness · · Synonym 2 barbarity · · Synonym 3 heinousness · · Synonym 4 Characters · · a latin small letter a U+0061 b latin small letter b U+0062 e latin small letter e U+0065 n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073 u latin small letter u U+0075