efficaciousness

noun

Definition of efficaciousnessnext
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
  1. efficacy
  2. effectiveness
Noun
  • However, as the industry innovates with newer products such as high alcohol content beer or ready-to-drink cocktails, the efficacy of the categorical system continues to break down.
    — Adam Hoffer, Chicago Tribune, 5 July 2026
  • Program planning needs to take into account the fun factor without losing efficacy.
    — Matt Parrott, Arkansas Online, 5 July 2026
Definition of efficacy
Noun
  • Swimming, sweating and even everyday wear can reduce its effectiveness over time.
    — Kaitlyn Harvey, AJC.com, 17 July 2026
  • The effectiveness of a monitoring system ultimately depends not only on the volume of data collected but also on the credibility, security, and reliability of the information produced.
    — IEEE Spectrum, IEEE Spectrum, 16 July 2026
Definition of effectiveness
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Browse Nearby Words

efficacious
efficaciousness
efficacity
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Cite this Entry

“Efficaciousness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/efficaciousness. Accessed 18 Jul. 2026.

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