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
There’s no denying the cost-effectiveness of investing in a high-quality luggage set, so this seasonal sale is the time to score the Coolife Luggage 4-piece Set while bags are only $34 apiece.
—
Merrell Readman, Travel + Leisure, 6 Oct. 2025
Young children have to use spacers, holding chambers that allow the patient to breathe in the medication slowly so more of it reaches the lungs, and a spacer would hinder a dry-powder inhaler’s effectiveness.
—Jen Christensen, CNN Money, 6 Oct. 2025
Probiotics are considered better for gut health because there's more research about their safety and effectiveness.
—Kirstyn Hill, Health, 6 Oct. 2025
Continue reading … TROUBLE BREWING – How caffeine can interfere with common medications and impact their effectiveness.
—FOXNews.com, 6 Oct. 2025
Operators can load or unload the truck in less than one minute and both the truck and trailer in less than five minutes, reducing downtime and increasing mission effectiveness, according to the company.
—Prabhat Ranjan Mishra, Interesting Engineering, 5 Oct. 2025
To the extent that AI’s promise to automate and improve the effectiveness of political tasks like personalized messaging, persuasion, and campaign strategy is even partially realized, this could generate a systematic advantage.
—Nathan E. Sanders, Time, 4 Oct. 2025
The study underscores the effectiveness of canopy bridges in supporting arboreal mammal movements in tropical forests.
—Real-Time News Team, Miami Herald, 3 Oct. 2025
Apolosign Calendar’s ‘pay once, use forever’ model, combined with its dual-mode design, improves cost-effectiveness and user trust.
—William Jones, USA Today, 2 Oct. 2025
Merrell Readman, Travel + Leisure, 6 Oct. 2025
Young children have to use spacers, holding chambers that allow the patient to breathe in the medication slowly so more of it reaches the lungs, and a spacer would hinder a dry-powder inhaler’s effectiveness.
—Jen Christensen, CNN Money, 6 Oct. 2025
Probiotics are considered better for gut health because there's more research about their safety and effectiveness.
—Kirstyn Hill, Health, 6 Oct. 2025
Continue reading … TROUBLE BREWING – How caffeine can interfere with common medications and impact their effectiveness.
—FOXNews.com, 6 Oct. 2025
Operators can load or unload the truck in less than one minute and both the truck and trailer in less than five minutes, reducing downtime and increasing mission effectiveness, according to the company.
—Prabhat Ranjan Mishra, Interesting Engineering, 5 Oct. 2025
To the extent that AI’s promise to automate and improve the effectiveness of political tasks like personalized messaging, persuasion, and campaign strategy is even partially realized, this could generate a systematic advantage.
—Nathan E. Sanders, Time, 4 Oct. 2025
The study underscores the effectiveness of canopy bridges in supporting arboreal mammal movements in tropical forests.
—Real-Time News Team, Miami Herald, 3 Oct. 2025
Apolosign Calendar’s ‘pay once, use forever’ model, combined with its dual-mode design, improves cost-effectiveness and user trust.
—William Jones, USA Today, 2 Oct. 2025
Recent Examples of Synonyms for effectiveness
Noun
-
The findings on the effect of treatment duration and age on berberine efficacy are conflicting.—
Trang Tran,
Verywell Health,
30 Sep. 2025
-
This would forego the need for a larger phase 3 study, though other trials may be done to confirm the treatment’s efficacy.—
Allison Parshall,
Scientific American,
30 Sep. 2025
Noun
-
The show was marred only by an audio mix that dimmed Coleman’s evocative voice amid a wash of instruments — at least from this reviewer’s spot in the Fox — but the Red Clay Strays’ impact shone through nevertheless.—
Brian McCollum,
Freep.com,
5 Oct. 2025
-
Tennessean photo journalist Andrew Nelles was recognized with a first place award in environmental photography by the 2025 Green Eyeshade awards for a collection of photos documenting the impacts of Hurricane Helene, which ravaged parts of East Tennessee and Western North Carolina.—
Nashville Tennessean,
Nashville Tennessean,
5 Oct. 2025
Noun
-
This assertion that Mary was a child of a well-to-do family might have some historical validity since this text was composed at a time when the poverty and celibacy of the Holy Family had become associated with her nunlike virtue.—
Literary Hub,
Literary Hub,
30 Sep. 2025
-
Intelligence officials have raised doubts regarding the validity of that document.—
Alexander Mallin,
ABC News,
25 Sep. 2025
Noun
-
Opinion journalism, at its best, helps people think more deeply about issues of local importance.—
Indianapolis Star,
IndyStar,
3 Oct. 2025
-
Throughout the song’s undulating, fluid melodies, Kali and Mariah trade verses about the importance of loyalty in love, all while maintaining their own otherworldly vocals in the process.—
Stephen Daw,
Billboard,
3 Oct. 2025
Noun
-
Linebacker Zaire Franklin could not care less about the Colts’ strength of schedule.—
James Boyd,
New York Times,
6 Oct. 2025
-
Another important strength of the category may look at first like a contradiction.—
Rebecca Ackermann,
The Atlantic,
5 Oct. 2025
Noun
-
Ellison clearly understands the power and significance of elevating certain stories over others.—
Alison Herman,
Variety,
7 Oct. 2025
-
Join us as Regina demystifies the journey to holistic health, emphasizing the significance of faith and the fostering of genuine connections.—
Zac Ntim,
Deadline,
6 Oct. 2025
Noun
-
The federal government argued that the lower courts were circumventing the power of the justices and improperly limiting the authority of the Department of Homeland Security.—
Syra Ortiz Blanes,
Miami Herald,
4 Oct. 2025
-
Unions of federal workers including the American Federation of Government Employees; the American Federation of State, County and Municipal Employees; and the AFL-CIO have filed a lawsuit arguing Trump doesn't have the authority to lay off workers and dismantle agencies during a shutdown.—
Bart Jansen,
USA Today,
4 Oct. 2025
Noun
-
The film’s considerable power depends entirely on its moment-to-moment persuasiveness, on a set of narrative and aesthetic choices that, as presented—in a series of swift, kinetically composed, and jaggedly edited scenes—seldom feel like choices at all.—
Justin Chang,
New Yorker,
6 Aug. 2025
Cite this Entry
“Effectiveness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/effectiveness. Accessed 9 Oct. 2025.
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