effectualness

noun

Definition of effectualnessnext
as in efficacy
the power to produce a desired result the effectualness of that new cancer treatment has yet to be proven

Synonyms & Similar Words

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Antonyms & Near Antonyms

Example Sentences

Recent Examples of Synonyms for effectualness
  1. efficacy
  2. effectiveness
Noun
  • Lack of self-efficacy Lahey explains that kids who never have to deal with the consequences of their actions end up feeling a lack of self-efficacy.
    — Cheryl Maguire, Parents, 1 Sep. 2026
  • The need-to-know this morning Alumis said its experimental treatment for lupus failed to achieve the efficacy goals of a mid-stage clinical trial.
    — Helen Branswell, STAT, 1 Sep. 2026
Definition of efficacy
Noun
  • Now the technique has become mainstream as attackers reap its simplicity and effectiveness in infecting users of PCs and Macs alike.
    — Dan Goodin, ArsTechnica, 11 Sep. 2026
  • The chaotic, violence-laden sequence is but the first of many in a film that aspires to classic Hollywood action movie status but reduces its effectiveness through overkill of both the literal and figurative kind.
    — Frank Scheck, HollywoodReporter, 10 Sep. 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

effectually
effectualness
effectuate
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Cite this Entry

“Effectualness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/effectualness. Accessed 14 Sep. 2026.

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