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
By combining cutting-edge protection, mobility, and digital integration, these vehicles are set to play a crucial role in enhancing military effectiveness and safeguarding personnel.
—
Prabhat Ranjan Mishra, Interesting Engineering, 27 Apr. 2026
Today, affordability is becoming just as important as effectiveness.
—Daniel Fusch, USA Today, 27 Apr. 2026
Changing the phase of a pharmaceutical drug can change its effectiveness, something factories need to protect against.
—Shalma Wegsman, Quanta Magazine, 27 Apr. 2026
To address these issues, it’s recommended to reapply the soap after four to six weeks to maintain its effectiveness.
—Sj McShane, Martha Stewart, 26 Apr. 2026
Even before the county’s decision, some city leaders had begun raising concerns about LAHSA’s structure and effectiveness.
—Teresa Liu, Daily News, 25 Apr. 2026
Existing treatment solutions are expensive and limited in effectiveness.
—Steve Adelstein, The Orlando Sentinel, 25 Apr. 2026
Testing and beyond Platts-Mills said Varespladib was given clearance by the FDA to test its effectiveness on animals.
—Andrew J. Campa, Los Angeles Times, 25 Apr. 2026
Never underestimate the effectiveness of consumer boycotts.
—Robert B. Reich, Hartford Courant, 25 Apr. 2026
Prabhat Ranjan Mishra, Interesting Engineering, 27 Apr. 2026
Today, affordability is becoming just as important as effectiveness.
—Daniel Fusch, USA Today, 27 Apr. 2026
Changing the phase of a pharmaceutical drug can change its effectiveness, something factories need to protect against.
—Shalma Wegsman, Quanta Magazine, 27 Apr. 2026
To address these issues, it’s recommended to reapply the soap after four to six weeks to maintain its effectiveness.
—Sj McShane, Martha Stewart, 26 Apr. 2026
Even before the county’s decision, some city leaders had begun raising concerns about LAHSA’s structure and effectiveness.
—Teresa Liu, Daily News, 25 Apr. 2026
Existing treatment solutions are expensive and limited in effectiveness.
—Steve Adelstein, The Orlando Sentinel, 25 Apr. 2026
Testing and beyond Platts-Mills said Varespladib was given clearance by the FDA to test its effectiveness on animals.
—Andrew J. Campa, Los Angeles Times, 25 Apr. 2026
Never underestimate the effectiveness of consumer boycotts.
—Robert B. Reich, Hartford Courant, 25 Apr. 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
-
Compared to skin care’s need to wait for efficacy validation, color cosmetics offer immediate gratification, lower decision-making costs, and even the promise of going viral online.—
Denni Hu,
Footwear News,
29 Apr. 2026
-
Atomi noted that while supine movements are common in physical therapy and exercise programs such as Pilates, there’s been little scientific evidence of their efficacy.—
Lindsey Leake,
NBC news,
29 Apr. 2026
Noun
-
But understanding the caution doesn’t lessen the impact of his absence.—
Mike Bianchi,
The Orlando Sentinel,
30 Apr. 2026
-
During a sentencing hearing in Ireland, a victim-impact statement is sometimes delivered in court.—
Ed Caesar,
New Yorker,
30 Apr. 2026
Noun
-
Kim, jailed since August, plans to appeal the ruling to South Korea’s Supreme Court as her legal team contests the investigation’s validity.—
Hyung-Jin Kim,
Los Angeles Times,
28 Apr. 2026
-
Some hotels also have validity windows (for instance, travel within six to twelve months of your wedding).—
Shradha Shahani,
Condé Nast Traveler,
28 Apr. 2026
Noun
-
Charles, who is well-known for his love of nature and the importance of sustainability, fed chickens in a coop together with the kids.—
Emma Caughlan,
NBC news,
30 Apr. 2026
-
Through their applause and standing ovations, Democrats showed more support than many Republicans for the monarch’s remarks, particularly on the importance of NATO and environmental protection.—
Swapna Venugopal Ramaswamy,
USA Today,
29 Apr. 2026
Noun
-
While the Sky are looking to rebound from a 10-34 season, the Dream went 30-14 last season and Reese’s growing offensive game, along with her strength on the boards, only adds to their championship hopes.—
Kalen Lumpkins,
Chicago Tribune,
30 Apr. 2026
-
And without Wagner, the Magic were missing too much of that collective strength.—
Mike Bianchi,
The Orlando Sentinel,
30 Apr. 2026
Noun
-
This remarkable find was unearthed at the earliest military camp discovered in the area, which holds national significance due to its Roman remains.—
Maria Mocerino,
Interesting Engineering,
25 Apr. 2026
-
Britain’s strategic significance for the United States eroded further with Brexit, starting in 2016 with the approval of a referendum to leave the European Union and the formal withdrawal four years later.—
Michael Collins,
USA Today,
25 Apr. 2026
Noun
-
Anybody who sees any sort of spill or leak in progress should call 911 and the proper authorities will be alerted, Ravitch said.—
Phil Diehl,
San Diego Union-Tribune,
26 Apr. 2026
-
The Secret Service and other authorities swarmed the banquet hall at the Washington Hilton as guests ducked under tables by the hundreds.—
Bridget Byrne,
Baltimore Sun,
26 Apr. 2026
Cite this Entry
“Effectiveness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/effectiveness. Accessed 2 May. 2026.
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