Thesaurus

inefficacious

adjective

Synonyms and Antonyms of inefficacious

  1. 1 not producing the desired result his efforts to restore the neglected houseplant back to health were belated and sadly inefficacious Synonyms of inefficacious counterproductive, feckless, hamstrung, ineffectual, ineffective, inefficient, inexpedientWords Related to inefficacious abortive, bootless, fruitless, futile, nonproductive, pointless, profitless, unavailing, unproductive, unprofitable, unsuccessful, useless, worthlessNear Antonyms of inefficacious availing, beneficial, helpful, productive, profitable, successful, useful, worthwhileAntonyms of inefficacious effective, effectual, efficacious, efficient, expedient, operant, ultraefficient

  2. 2 producing no results an inefficacious medication for a rare form of tuberculosis Synonyms of inefficacious abortive, barren, bootless, empty, fruitless, ineffective, ineffectual, futile, otiose, profitless, unavailing, unproductive, unprofitable, unsuccessful, useless, vainWords Related to inefficacious hollow, idle, meaningless, pointless, valueless, worthless; hopeless, impossible, lost, no-win, unattainable; inadequate, insufficient, lacking, wanting; counterproductiveNear Antonyms of inefficacious meaningful, worthwhile; adequate, sufficient; applicable, feasible, functional, practicable, practical, realizable, usable (also useable), workableAntonyms of inefficacious deadly, effective, effectual, efficacious, efficient, fruitful, potent, productive, profitable, successful, virtuous


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