Excellent and Efficacious

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Excellent adjective - Of the very best kind.

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Efficacious and excellent are semantically related. In some cases you can use "Efficacious" instead an adjective "Excellent".

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

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Excellent and efficacious are semantically related. Sometimes you can use "Excellent" instead an adjective "Efficacious".

Cite this Source

Efficacious and Excellent. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/excellent/efficacious

Excellent & Efficacious. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/excellent/efficacious>.

Efficacious or Excellent. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/excellent/efficacious.

Google Ngram Viewer shows how "excellent" and "efficacious" have occurred on timeline