as in efficacy
the power to produce a desired result
the efficaciousness of exercise in improving physical as well as emotional well-being
Synonyms & Similar Words
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Antonyms & Near Antonyms
Example Sentences
Recent Examples of Synonyms for efficaciousness
Noun
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The new details related to the Chinese and Iranian accounts, however, raise new questions about the efficacy of that program.—
Leo Schwartz,
Fortune,
12 Mar. 2026 -
Despite its intense efficacy, the body treatment is gentle and safe for eczema-prone complexions and all skin types.—
Kyra Surgent,
InStyle,
11 Mar. 2026
Noun
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Others like Kaiser Permanente and Oregon Health and Science University have stated that their providers will not prescribe the drug until more research is done on its safety and effectiveness.—
Michal Ruprecht,
NPR,
16 Mar. 2026
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Beyond his onstage excellence, Grady runs our props department with remarkable effectiveness and decisiveness.—
Heide Janssen,
Oc Register,
15 Mar. 2026
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“Efficaciousness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/efficaciousness. Accessed 19 Mar. 2026.
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