as in efficacy
the power to produce a desired result
the efficaciousness of exercise in improving physical as well as emotional well-being
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Recent Examples of Synonyms for efficaciousness
Noun
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There are safety measures in place to protect against the use of harmful mercury or lead in products, for example, but brands don’t have to prove the efficacy of cosmetic ingredients or submit drug requests with clinical studies to the FDA or any other regulatory body.—
Kara Nesvig,
Allure,
24 Apr. 2025 -
After determining the most promising options, researchers then adjusted the guns to calculate an equation focused on a shield stack’s efficacy and performance.—
Andrew Paul,
Popular Science,
24 Apr. 2025
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“Efficaciousness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/efficaciousness. Accessed 1 May. 2025.
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