Efficacity and Efficacy

Efficacity

Efficacity noun - The power to produce a desired result.
Usage example: the limited efficacity of the primitive tool as an instrument for cutting raw meat
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Synonyms for Efficacity

Efficacy and efficacity are semantically related in efficiency topic. In some cases you can use "Efficacy" instead a noun "Efficacity".

Efficacy

Efficacy noun - The power to produce a desired result.
Usage example: questioned the efficacy of the alarms in actually preventing auto theft

Efficacity and efficacy are semantically related in efficiency topic. You can use "Efficacity" instead a noun "Efficacy".

Cite this Source
Efficacy and Efficacity. (2017). Retrieved 2026, July 21, from https://thesaurus.plus/related/efficacity/efficacy
Efficacity & Efficacy. N.p., 2017. Web. 21 Jul. 2026. <https://thesaurus.plus/related/efficacity/efficacy>.
Efficacy or Efficacity. 2017. Accessed July 21, 2026. https://thesaurus.plus/related/efficacity/efficacy.
Google Ngram Viewer shows how "efficacity" and "efficacy" have occurred on timeline