as in efficacy
the power to produce a desired result
the limited efficacity of the primitive tool as an instrument for cutting raw meat
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Recent Examples of efficacity
Employing touchscreens for voting results in the adoption of technology for its own sake rather than to provide efficacity.
—
Letter Writers, Twin Cities, 10 Nov. 2019
Letter Writers, Twin Cities, 10 Nov. 2019
Recent Examples of Synonyms for efficacity
Noun
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Earlier this week, pharmaceutical company Pfizer and its partner Valneva announced that an experimental Lyme disease vaccine showed more than 70% efficacy in late-stage clinical trials.—
Mary Kekatos,
ABC News,
24 Mar. 2026
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Finding passions, hobbies, community and values outside of family can help build self-worth and self-efficacy, Cole said.—
Rachel Hale,
USA Today,
24 Mar. 2026
Noun
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My father mobilized peaceful protest with rare effectiveness — and was met with state violence.—
Noo Saro-Wiwa,
The Dial,
24 Mar. 2026
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The fact that the barrels remain in an exceptional state of preservation speaks to the effectiveness of this 17th-century strategy to store lime long-term.—
Maria Mocerino,
Interesting Engineering,
23 Mar. 2026
Cite this Entry
“Efficacity.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/efficacity. Accessed 29 Mar. 2026.
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