wholeheartedness wholeheartedly • wholeness · · · Info · Definitions · Synonyms · Characters · · wholeheartedness · · Text Latin · · Script 16 · · Length Definitions · · · (noun) the quality of hearty sincerity. Synonyms: heartiness. · · Noun Definition 1 (noun) undivided commitment or unreserved enthusiasm. · · Noun Definition 2 Synonyms · · · heartiness · · Synonym 1 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 l latin small letter l U+006C 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 t latin small letter t U+0074 w latin small letter w U+0077