Thesaurus

inefficacious

adjective

Synonyms and Antonyms of inefficacious

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, ineffective, ineffectual, inefficient, inexpedient

Words Related to inefficacious

abortive, bootless, fruitless, futile, nonproductive, pointless, profitless, unavailing, unproductive, unprofitable, unsuccessful, useless, worthless

Near Antonyms of inefficacious

availing, beneficial, helpful, productive, profitable, successful, useful, worthwhile

Antonyms of inefficacious

effective, effectual, efficacious, efficient, expedient, operant, ultraefficient

2 producing no results

an inefficacious medication for a rare form of tuberculosis

Synonyms of inefficacious

abortive, barren, bootless, empty, fruitless, futile, ineffective, ineffectual, otiose, profitless, unavailing, unproductive, unprofitable, unsuccessful, useless, vain

Words Related to inefficacious

hollow, idle, meaningless, pointless, valueless, worthless

hopeless, impossible, lost, no-win, unattainable

inadequate, insufficient, lacking, wanting

counterproductive

Phrases Synonymous with inefficacious

in vain, no dice, not worth the candle, of no avail

Near Antonyms of inefficacious

meaningful, worthwhile

adequate, sufficient

applicable, feasible, functional, practicable, practical, realizable, usable (also useable), workable

Antonyms of inefficacious

deadly, effective, effectual, efficacious, efficient, fruitful, potent, productive, profitable, successful, virtuous

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Dictionary: Definition of inefficacious

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