Efficient and Unavailing

Opposite meaning words

Efficient adjective - Producing or capable of producing a desired result.

Usage example: that manual lawn mower is not a very efficient tool for doing a huge yard

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Unavailing is an antonym for efficient.

Nearby Words: efficiency, efficiently, efficacy

Unavailing adjective - Producing no results.

Usage example: an unavailing effort to avert a war

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Efficient is an antonym for unavailing.

Nearby Word: unavailable

Cite this Source

Unavailing and Efficient. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/efficient/unavailing

Efficient & Unavailing. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/efficient/unavailing>.

Unavailing or Efficient. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/efficient/unavailing.

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