14 letters · 25 points in Scrabble
noun lacking the power to be effective
originEtymology tree English ineffectual Proto-Indo-European *-teh₂ Proto-Indo-European *-ts Proto-Indo-European *-teh₂ts Latin -itāsder. Old French -itebor. Middle English -ite English -ity English ineffectuality From ineffectual + -ity.
Etymology from Wiktionary, CC BY-SA 3.0