Efficaciousness and Weakness

Opposite meaning words

Efficaciousness noun - The power to produce a desired result.

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Weakness is an antonym for efficaciousness in effect topic.

Weakness noun - The quality or state of lacking physical strength or vigor.

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Efficaciousness is an antonym for weakness.

Nearby Words: weak, weaken, weakly, weakening, weakling

Cite this Source

Weakness and Efficaciousness. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/efficaciousness/weakness

Efficaciousness & Weakness. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/efficaciousness/weakness>.

Weakness or Efficaciousness. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/efficaciousness/weakness.

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