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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

Learn More about inefficacious

  1. Dictionary: Definition of inefficacious

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