1
as in conclusiveness
the capacity to persuade
the "guilty" verdict was all the proof needed of the effectiveness of the prosecutor's closing argument
Synonyms & Similar Words
Relevance
Antonyms & Near Antonyms
2
as in efficacy
the power to produce a desired result
the huge upsurge in sales pretty much demonstrated the effectiveness of the new ad campaign
Synonyms & Similar Words
Antonyms & Near Antonyms
3
as in impact
the quality of an utterance that provokes interest and produces an effect
your writing lacks effectiveness because practically every sentence is in the passive voice
Synonyms & Similar Words
Example Sentences
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Recent Examples of effectiveness
Additionally, Walmart must submit an annual report to the FTC for the next 10 years to make sure drivers are being paid what they were promised and document the effectiveness of the program.
—
Glenn Taylor, Sourcing Journal, 2 Mar. 2026
Several established gaming companies have been in retreat because of the rise of prediction markets, state crackdowns on daily fantasy and dual-currency sweepstakes and reduced effectiveness of affiliate betting links to drive sign-ups.
—Dan Bernstein, Sportico.com, 2 Mar. 2026
This version adds an advanced seeker and is designed to engage moving targets, further expanding the system’s operational flexibility and effectiveness in maritime operations, according to TWZ.
—Jijo Malayil, Interesting Engineering, 2 Mar. 2026
More than 1,600 people have downloaded the app, according to the campaign, which plans to evaluate its effectiveness after the primary before deciding whether to expand it for November.
—Aarón Torres, Dallas Morning News, 2 Mar. 2026
Mizrahi knew that studies had debunked its effectiveness in treating COVID.
—Yuki Noguchi, NPR, 2 Mar. 2026
That process requires utilities to demonstrate need and cost-effectiveness to state regulators before moving forward.
—Caroline Foreback, CBS News, 2 Mar. 2026
As housing prices continue to rise, the state’s appeal will depend on balancing cost-effectiveness with its existing strengths.
—Sara B. Hansen, Denver Post, 27 Feb. 2026
But nothing came close to the effectiveness of Starlink, which remained a central pillar of Ukraine’s defenses and a source of deep concern for its leadership.
—Simon Shuster, The Atlantic, 27 Feb. 2026
Glenn Taylor, Sourcing Journal, 2 Mar. 2026
Several established gaming companies have been in retreat because of the rise of prediction markets, state crackdowns on daily fantasy and dual-currency sweepstakes and reduced effectiveness of affiliate betting links to drive sign-ups.
—Dan Bernstein, Sportico.com, 2 Mar. 2026
This version adds an advanced seeker and is designed to engage moving targets, further expanding the system’s operational flexibility and effectiveness in maritime operations, according to TWZ.
—Jijo Malayil, Interesting Engineering, 2 Mar. 2026
More than 1,600 people have downloaded the app, according to the campaign, which plans to evaluate its effectiveness after the primary before deciding whether to expand it for November.
—Aarón Torres, Dallas Morning News, 2 Mar. 2026
Mizrahi knew that studies had debunked its effectiveness in treating COVID.
—Yuki Noguchi, NPR, 2 Mar. 2026
That process requires utilities to demonstrate need and cost-effectiveness to state regulators before moving forward.
—Caroline Foreback, CBS News, 2 Mar. 2026
As housing prices continue to rise, the state’s appeal will depend on balancing cost-effectiveness with its existing strengths.
—Sara B. Hansen, Denver Post, 27 Feb. 2026
But nothing came close to the effectiveness of Starlink, which remained a central pillar of Ukraine’s defenses and a source of deep concern for its leadership.
—Simon Shuster, The Atlantic, 27 Feb. 2026
Recent Examples of Synonyms for effectiveness
Noun
-
But his dictionary, with its conclusiveness, was a huge publishing success.—
Louis Menand,
New Yorker,
22 Dec. 2025
Noun
-
The agency has issued consumer alerts stating that its true efficacy and safety are unknown.—
Cindy Krischer Goodman,
Sun Sentinel,
5 Mar. 2026
-
As Polymarket inundates millions of timelines with newsy statements, the efficacy of each announcement can be hard to parse.—
Joe Wilkins,
Futurism,
5 Mar. 2026
Noun
-
Disruptions to that supply are pushing global prices higher, and the impact is showing up at the pump.—
Samantha Delouya,
CNN Money,
5 Mar. 2026
-
Victim witness impact statements are not sworn statements in juvenile court.—
Clara Harter,
Los Angeles Times,
5 Mar. 2026
Noun
-
To test the validity of this story, researchers need to peer back in time to the solar system’s first moments and beyond.—
James Dinneen,
Quanta Magazine,
2 Mar. 2026
-
Only two images of Martin have surfaced online since the incident, and Fox News Digital could not verify the validity of either.—
Peter D'Abrosca,
FOXNews.com,
1 Mar. 2026
Noun
-
Though Beijing is the biggest buyer of Iranian oil, the country’s strategic importance to China is far more limited than many may assume.—
John Liu,
CNN Money,
4 Mar. 2026
-
The specific terms themselves are not necessarily of particular importance; what’s important is the concepts behind those terms.—
Big Think,
Big Think,
4 Mar. 2026
Noun
-
The courage of our convictions and the strength to embody them.—
Taryn Luna,
Los Angeles Times,
6 Mar. 2026
-
These fibers combine electrical resistivity suitable for Joule heating with exceptional strength and relatively high thermal conductivity.—
Aamir Khollam,
Interesting Engineering,
6 Mar. 2026
Noun
-
Lyon emphasized the significance of body composition in conditions like Alzheimer’s, dementia and mild cognitive impairment.—
Sandra Rose Salathe,
Flow Space,
6 Mar. 2026
-
The findings will need to be confirmed and the vaccine approach tested in other animals, including humans, before its true significance is clear.—
Veronique Greenwood,
Time,
6 Mar. 2026
Noun
-
First responders from multiple agencies in the Union Lake area near Union City looked for more possible victims and worked to clear roads, authorities said.—
Arkansas Online,
Arkansas Online,
8 Mar. 2026
-
The authority owes the city $8 million, which the city has committed to forgive if the changes at the property are done responsibly.—
Cameron Knight,
Cincinnati Enquirer,
8 Mar. 2026
Cite this Entry
“Effectiveness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/effectiveness. Accessed 9 Mar. 2026.
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