EFFECTUALNESS Synonyms: 22 Similar and Opposite Words

effectualness

noun

Definition of effectualness

as in efficacy

the power to produce a desired result the effectualness of that new cancer treatment has yet to be proven

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Recent Examples of Synonyms for effectualness

Noun

Marston’s company has applied for grants to evaluate the efficacy of its drones.

— Cindy Von Quednow, CNN Money, 24 Aug. 2026
The drawback of using essential oils to repel flies is that their efficacy is short-lived.

— Louise Parks, Martha Stewart, 21 Aug. 2026

Definition of efficacy

Noun

Implement a digital visual-management platform across six facilities to standardize workflows and improve infection prevention, care coordination, workforce effectiveness, quality, and patient safety.

— Arkansas Democrat-Gazette, Arkansas Online, 27 Aug. 2026
Apart from the penalty, Meta agreed as part of the settlement to algorithmic changes that could dampen engagement and the effectiveness of its advertising, dampening investor sentiment toward the resolution of the case.

— Tobias Burns, CNBC, 26 Aug. 2026

Definition of effectiveness

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effectually

effectualness

effectuate

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“Effectualness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/effectualness. Accessed 31 Aug. 2026.

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Synonyms of effectualness

noun

Example Sentences

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