unavailing

producing no results an unavailing effort to avert a war Synonyms abortive, barren, bootless, empty, fruitless, ineffective, ineffectual, inefficacious, otiose, profitless, futile, unproductive, unprofitable, unsuccessful, useless, vainRelated Words hollow, idle, meaningless, pointless, valueless, worthless; hopeless, impossible, lost, no-win, unattainable; inadequate, insufficient, lacking, wanting; counterproductiveNear Antonyms meaningful, worthwhile; adequate, sufficient; applicable, feasible, functional, practicable, practical, realizable, usable (also useable), workableAntonyms deadly, effective, effectual, efficacious, efficient, fruitful, potent, productive, profitable, successful, virtuous