Efficaciousness and Uselessness

Opposite meaning words

Efficaciousness noun - The power to produce a desired result.

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Uselessness is an antonym for efficaciousness in effect topic.

Uselessness noun - The quality of having no practical use.

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Efficaciousness is an antonym for uselessness.

Cite this Source

Uselessness and Efficaciousness. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/efficaciousness/uselessness

Efficaciousness & Uselessness. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/efficaciousness/uselessness>.

Uselessness or Efficaciousness. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/efficaciousness/uselessness.

Google Ngram Viewer shows how "efficaciousness" and "uselessness" have occurred on timeline