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
  • Another way to measure the law’s efficacy is to ask parents themselves.
    — Ravi Iyer, Time, 18 July 2026
  • Many within the military outside the high command also spoke against Fedorov, voicing skepticism about the efficacy of his reforms.
    — Brady Knox, The Washington Examiner, 16 July 2026
Definition of efficacy
Noun
  • More broadly, Kimi K3’s capabilities are renewing questions about the effectiveness of Washington’s tech export curbs.
    — John Liu, CNN Money, 24 July 2026
  • His mobility has long been an asset in sack avoidance, though even that has seen a dip in effectiveness over the past two years.
    — Sam McDowell, Kansas City Star, 24 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

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 27 Jul. 2026.

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