unhealthfulness unhealthfully • unhealthier · · · Info · Definitions · Antonyms · Characters · · unhealthfulness · · Text Latin · · Script 15 · · Length 4 · · Syllables Definitions · · · (noun) the quality of promoting poor health. · · Noun Definition 1 Antonyms · · · healthfulness · · Antonym 0 Characters · · a latin small letter a U+0061 e latin small letter e U+0065 f latin small letter f U+0066 h latin small letter h U+0068 l latin small letter l U+006C n latin small letter n U+006E s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075