hardheartedness hardheartedly • hardihood · · · Info · Definitions · Synonyms · Characters · · hardheartedness · · Text Latin · · Script 15 · · Length Definitions · · · (noun) an absence of concern for the welfare of others. Synonyms: heartlessness, coldheartedness. · · Noun Definition 1 Synonyms · · · heartlessness · · Synonym 1 coldheartedness · · Synonym 2 Characters · · a latin small letter a U+0061 d latin small letter d U+0064 e latin small letter e U+0065 h latin small letter h U+0068 n latin small letter n U+006E r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074