mirthfulness mirthfully • mirthless · · · Info · Definitions · Synonyms · Characters · · mirthfulness · · Text Latin · · Script 12 · · Length 3 · · Syllables Definitions · · · (noun) great merriment. Synonyms: hilarity, mirth, glee, gleefulness. · · Noun Definition 1 Synonyms · · · hilarity · · Synonym 1 mirth · · Synonym 2 glee · · Synonym 3 gleefulness · · Synonym 4 Characters · · e latin small letter e U+0065 f latin small letter f U+0066 h latin small letter h U+0068 i latin small letter i U+0069 l latin small letter l U+006C m latin small letter m U+006D 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 u latin small letter u U+0075