/ Dictionary / Index I ineffectual: Meaning and Definition of Find definitions for: in•ef•fec•tu•al Pronunciation: (in"i-fek'ch-ul), [key] — adj. not effectual; without satisfactory or decisive effect: an ineffectual remedy. unavailing; futile: His efforts to sell the house were ineffectual. powerless; impotent. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ineffectual (Thesaurus) ineffective inefficacious Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language