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
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Recent Examples of effectiveness
Figlio said the states and districts that have adopted those policies have done so without much evidence to support their effectiveness.
—
Silas Allen, Fort Worth Star-Telegram, 10 Nov. 2025
Although auctions are a ubiquitous form of fundraising that vary in effectiveness depending on what’s crossing the block and who benefits, philanthropic bidding will be in overdrive at a single-lot event in Las Vegas on November 21.
—Viju Mathew, Robb Report, 10 Nov. 2025
In fact, using vinegar and detergent simultaneously can actually decrease the effectiveness of the detergent’s stain-fighting power by breaking down the enzymes responsible for the job.
—Patricia Shannon, Better Homes & Gardens, 8 Nov. 2025
The participants received varying doses of the CRISPR therapy, since the early Phase 1 trial was designed to primarily evaluate whether the gene editing was safe and provide hints about its potential effectiveness.
—Alice Park, Time, 8 Nov. 2025
Customers praise not only the effectiveness of treatments but also the friendliness and professionalism of technicians.
—Connie Etemadi, USA Today, 7 Nov. 2025
As Redick likes to put it, the effectiveness of a pick and roll comes down to both parties – the ball-handler and screen setter – doing their jobs.
—Khobi Price, Oc Register, 7 Nov. 2025
The effectiveness of Madrid’s cash incentives in meaningfully raising birth rates will be closely watched as city officials evaluate participation and demographic trends.
—Jordan King, MSNBC Newsweek, 7 Nov. 2025
Workplace harmony and effectiveness easily win over sincerity in this case.
—Sophie Brookover, Vulture, 7 Nov. 2025
Silas Allen, Fort Worth Star-Telegram, 10 Nov. 2025
Although auctions are a ubiquitous form of fundraising that vary in effectiveness depending on what’s crossing the block and who benefits, philanthropic bidding will be in overdrive at a single-lot event in Las Vegas on November 21.
—Viju Mathew, Robb Report, 10 Nov. 2025
In fact, using vinegar and detergent simultaneously can actually decrease the effectiveness of the detergent’s stain-fighting power by breaking down the enzymes responsible for the job.
—Patricia Shannon, Better Homes & Gardens, 8 Nov. 2025
The participants received varying doses of the CRISPR therapy, since the early Phase 1 trial was designed to primarily evaluate whether the gene editing was safe and provide hints about its potential effectiveness.
—Alice Park, Time, 8 Nov. 2025
Customers praise not only the effectiveness of treatments but also the friendliness and professionalism of technicians.
—Connie Etemadi, USA Today, 7 Nov. 2025
As Redick likes to put it, the effectiveness of a pick and roll comes down to both parties – the ball-handler and screen setter – doing their jobs.
—Khobi Price, Oc Register, 7 Nov. 2025
The effectiveness of Madrid’s cash incentives in meaningfully raising birth rates will be closely watched as city officials evaluate participation and demographic trends.
—Jordan King, MSNBC Newsweek, 7 Nov. 2025
Workplace harmony and effectiveness easily win over sincerity in this case.
—Sophie Brookover, Vulture, 7 Nov. 2025
Recent Examples of Synonyms for effectiveness
Noun
-
The data shows eloralintide offers the potential for strong efficacy with improved tolerability and could serve as an alternative to incretin therapies, said Kenneth Custer, president of Lilly Cardiometabolic Health.—
Reuters,
NBC news,
6 Nov. 2025
-
However, by the time of the American withdrawal from Afghanistan in 2021, which allowed the Taliban to return to power, the perception of the morality and efficacy of that long war had dwindled in the international community.—
Literary Hub,
Literary Hub,
5 Nov. 2025
Noun
-
The France midfielder signed from Lyon in the summer has been eased into his Premier League career after a two-month injury layoff, with Guardiola using him mostly as an impact substitute since returning to action in mid-October.—
Andy Jones,
New York Times,
9 Nov. 2025
-
Over the course of the three-day summit, attendees and Goldman leaders talked all things AI—from the most lucrative investments, to the tech’s impact on the environment, and its potential to innovate industries.—
Emma Burleigh,
Fortune,
9 Nov. 2025
Noun
-
Overturning the validity of the IEEPA tariffs but doing as Katyal suggested and limiting the decision to prospective relief could thread an incredibly difficult needle.—
Tiana Lowe Doescher,
The Washington Examiner,
7 Nov. 2025
-
However, some experts question the validity of these testing measures.—
Barbie Cervoni,
Verywell Health,
7 Nov. 2025
Noun
-
His next story was a video of University of Nebraska head coach Matt Rhule discussing the importance of mental health.—
Angel Saunders,
PEOPLE,
7 Nov. 2025
-
The growing importance of collision avoidance The US operates by far the most satellites in low Earth orbit, thanks largely to SpaceX’s Starlink constellation.—
Chris Young,
Interesting Engineering,
7 Nov. 2025
Noun
-
What’s your team’s greatest strength this season?—
Andy Jones,
New York Times,
9 Nov. 2025
-
And that’s all without mentioning a run defense that flexed its strength against the Green Bay Packers, and a special teams group that is facilitating complementary football and more.—
Charlotte Observer,
Charlotte Observer,
9 Nov. 2025
Noun
-
But for all its significance, this disruption wasn’t entirely unexpected.—
Peter D. Feaver,
Foreign Affairs,
12 Nov. 2025
-
In an interview with the lyrics platform Genius, Skrilla explains the number’s significance in classically opaque rapper terms.—
Jeff Ihaza,
Rolling Stone,
11 Nov. 2025
Noun
-
Members of the Little Rock housing authority's board of commissioners on Friday voted to recommend that Keith Fountain be appointed to a five-year term on the board.—
Joseph Flaherty,
Arkansas Online,
8 Nov. 2025
-
His car was later found abandoned, and authorities began searching the area.—
Ryan Canfield,
FOXNews.com,
7 Nov. 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 27 Nov. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share