Thesaurus

inefficacious

adjective

Synonyms & 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 for inefficacious

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Time Traveler for inefficacious

Time Traveler

The first known use of inefficacious was in 1658

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Thesaurus Entries Near inefficacious

inefficacies

inefficacious

inefficaciousness

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Cite this Entry

“Inefficacious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/inefficacious. Accessed 17 Sep. 2021.

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