What are the best answers for “another word for ineffectiveness”?

ineffectuality, ineffectualness.

How many letters does the top answer for “another word for ineffectiveness” have?

The most common answer is ineffectuality (14 letters).

2 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

ineffectuality 14 letters gen-syn

lacking the power to be effective

ineffectualness 15 letters gen-syn

lacking the power to be effective

another word for about 50% similar → approximately, roughly, some

another word for terms 50% similar → footing

another word for under 50% similar → nether

another word for word 50% similar → phrase