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 study tested the efficacy of four bite-resistant wetsuit materials–Aqua Armour, Shark Stop, ActionTX-S, and Brewster material.—
Laura Baisas,
Popular Science,
24 Sep. 2025 -
The ordeal raised questions about the efficacy of the Omnilert system.—
Rachel Wegner,
Nashville Tennessean,
24 Sep. 2025
Noun
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His work with rural counties has earned favorable notices, but in urban areas like Phoenix, many of the experts in Joan's reporting raised questions about Livar's effectiveness.—
Shaun McKinnon,
AZCentral.com,
30 Sep. 2025
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His business background and financial ties have fueled questions about AO’s independence and its effectiveness as an advocacy group.—
Daniel Libit,
Sportico.com,
29 Sep. 2025
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“Efficaciousness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/efficaciousness. Accessed 1 Oct. 2025.
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