hilarity hilariousness • hilaro-tragedy · · · Info · Definitions · Synonyms · Characters · · hilarity · · Text Latin · · Script 8 · · Length 4 · · Syllables Definitions · · · (noun) great merriment. Synonyms: mirth, mirthfulness, glee, gleefulness. · · Noun Definition 1 Synonyms · · · mirth · · Synonym 1 mirthfulness · · Synonym 2 glee · · Synonym 3 gleefulness · · Synonym 4 Characters · · a latin small letter a U+0061 h latin small letter h U+0068 i latin small letter i U+0069 l latin small letter l U+006C r latin small letter r U+0072 t latin small letter t U+0074 y latin small letter y U+0079