ineffectiveness ineffectively • ineffectual · · · Info · Definitions · Synonyms · Antonyms · Characters · · ineffectiveness · · Text Latin · · Script 15 · · Length Definitions · · · (noun) lacking the power to be effective. Synonyms: ineffectualness, ineffectuality. · · Noun Definition 1 Synonyms · · · ineffectualness · · Synonym 1 ineffectuality · · Synonym 2 Antonyms · · · effectiveness · · Antonym 0 effectivity · · Antonym 1 effectualness · · Antonym 2 effectuality · · Antonym 3 Characters · · c latin small letter c U+0063 e latin small letter e U+0065 f latin small letter f U+0066 i latin small letter i U+0069 n latin small letter n U+006E s latin small letter s U+0073 t latin small letter t U+0074 v latin small letter v U+0076