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
Show all Definitions
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, August 15, from https://thesaurus.plus/related/efficacity/efficacy
Efficacity & Efficacy. N.p., 2017. Web. 15 Aug. 2026. <https://thesaurus.plus/related/efficacity/efficacy>.
Efficacy or Efficacity. 2017. Accessed August 15, 2026. https://thesaurus.plus/related/efficacity/efficacy.
Google Ngram Viewer shows how "efficacity" and "efficacy" have occurred on timeline