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
Relevance
Antonyms & Near Antonyms
Example Sentences
Recent Examples of Synonyms for effectualness
Noun
-
The once-daily, oral medication is proven to reduce the frequency and intensity of hot flashes and night sweats, based on clinical studies measuring efficacy at 4 and 12 weeks.—
Marnie Goodfriend,
Flow Space,
29 Oct. 2025 -
If there were, there’d be safety in numbers and a sense of efficacy.—
Michael Shank,
MSNBC Newsweek,
27 Oct. 2025
Noun
-
Naysayers on both sides attack, question Newsom's effectiveness Newsom's White House ambitions remain just that, for now.—
Phillip M. Bailey,
USA Today,
3 Nov. 2025
-
Worthington said the rhetoric by Republicans in Pennsylvania is helpful, but limited in its effectiveness.—
Will McDuffie,
ABC News,
3 Nov. 2025
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.
Cite this Entry
“Effectualness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/effectualness. Accessed 5 Nov. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share