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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Example Sentences
Recent Examples of Synonyms for effectualness
Noun
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According to the Centers for Disease Control and Prevention (CDC), some studies report that certain essential oils, like peppermint oil and rosemary oil, have some efficacy for tick control.—
Dan Simms,
USA Today,
4 June 2026 -
Oncologists want to know if that broad activity leads to broad efficacy.—
Lisa Jarvis,
Mercury News,
4 June 2026
Noun
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Only 30% of the studies, or 23/77, even attempted to test for mask effectiveness.—
Ian Miller OutKick,
FOXNews.com,
1 June 2026
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This in turn depends on their preferences for what is and is not covered based on many different factors, including products’ clinical- and cost-effectiveness, budgetary impact and other considerations.—
Joshua P. Cohen,
Forbes.com,
1 June 2026
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“Effectualness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/effectualness. Accessed 7 Jun. 2026.
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