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
My father mobilized peaceful protest with rare effectiveness — and was met with state violence.
—
Noo Saro-Wiwa, The Dial, 24 Mar. 2026
The fact that the barrels remain in an exceptional state of preservation speaks to the effectiveness of this 17th-century strategy to store lime long-term.
—Maria Mocerino, Interesting Engineering, 23 Mar. 2026
His core thesis was that the president’s formal constitutional powers are constrained, with their effectiveness reliant on their ability to bargain and persuade other key political players.
—Jeffrey Sonnenfeld, Fortune, 23 Mar. 2026
Many students and staff members praised Scott’s leadership and effectiveness during his tenure.
—Carole Carlson, Chicago Tribune, 22 Mar. 2026
Not everyone agrees on their effectiveness.
—Tony Plohetski, Austin American Statesman, 19 Mar. 2026
And technology isn’t always closely vetted, said Stanford University professor Rebecca Silverman, who has studied the effectiveness of educational technology.
—Kate Sequeira, Los Angeles Times, 19 Mar. 2026
But the mission has faced growing challenges, including restrictions on movement and attacks on its personnel, raising criticism about its effectiveness.
—Efrat Lachter, FOXNews.com, 19 Mar. 2026
The future of psychiatric rehabilitation Despite its effectiveness, many factors limit access to psychiatric rehabilitation, including underfunding, lack of appropriate Medicaid reimbursement, an unprepared workforce and an overemphasis on pharmaceutical treatment.
—Adrienne Lapidos, The Conversation, 18 Mar. 2026
Noo Saro-Wiwa, The Dial, 24 Mar. 2026
The fact that the barrels remain in an exceptional state of preservation speaks to the effectiveness of this 17th-century strategy to store lime long-term.
—Maria Mocerino, Interesting Engineering, 23 Mar. 2026
His core thesis was that the president’s formal constitutional powers are constrained, with their effectiveness reliant on their ability to bargain and persuade other key political players.
—Jeffrey Sonnenfeld, Fortune, 23 Mar. 2026
Many students and staff members praised Scott’s leadership and effectiveness during his tenure.
—Carole Carlson, Chicago Tribune, 22 Mar. 2026
Not everyone agrees on their effectiveness.
—Tony Plohetski, Austin American Statesman, 19 Mar. 2026
And technology isn’t always closely vetted, said Stanford University professor Rebecca Silverman, who has studied the effectiveness of educational technology.
—Kate Sequeira, Los Angeles Times, 19 Mar. 2026
But the mission has faced growing challenges, including restrictions on movement and attacks on its personnel, raising criticism about its effectiveness.
—Efrat Lachter, FOXNews.com, 19 Mar. 2026
The future of psychiatric rehabilitation Despite its effectiveness, many factors limit access to psychiatric rehabilitation, including underfunding, lack of appropriate Medicaid reimbursement, an unprepared workforce and an overemphasis on pharmaceutical treatment.
—Adrienne Lapidos, The Conversation, 18 Mar. 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
-
Earlier this week, pharmaceutical company Pfizer and its partner Valneva announced that an experimental Lyme disease vaccine showed more than 70% efficacy in late-stage clinical trials.—
Mary Kekatos,
ABC News,
24 Mar. 2026
-
Finding passions, hobbies, community and values outside of family can help build self-worth and self-efficacy, Cole said.—
Rachel Hale,
USA Today,
24 Mar. 2026
Noun
-
MacEgan family speaks in court Before Abril was formally sentenced, the court allowed the MacEgan family to speak about the impact of these crimes and the family patriarch’s death.—
Rosalio Ahumada,
Sacbee.com,
26 Mar. 2026
-
While the $6 million in damages a jury in Los Angeles awarded to the 20-year-old plaintiff — which the companies vowed to appeal — will barely register on their balance sheets, the impact of the verdict will likely be more damaging and harder to quantify.—
Kurt Wagner,
Bloomberg,
26 Mar. 2026
Noun
-
The validity of this is not scientifically proven and requires further research.—
BestReviews,
Mercury News,
23 Mar. 2026
-
Olivier isn’t challenging the validity of his conviction to get relief or to seek monetary damages, Justice Elena Kagan wrote.—
Maureen Groppe,
USA Today,
20 Mar. 2026
Noun
-
Heat stroke is a serious emergency and time is of the utmost importance when treating it.—
Brad Stulberg,
Outside,
25 Mar. 2026
-
The more complex the AI workload is, the more RAM is required to host and run the AI model, which makes memory capacity of paramount importance.—
Michael Justin Allen Sexton,
PC Magazine,
25 Mar. 2026
Noun
-
That Smith’s work remains little-known is all the more baffling considering the strength and depth of a retrospective now up at Keith de Lellis.—
Rachel Syme,
New Yorker,
27 Mar. 2026
-
His teammates often marvel at his strength both in the weight room and in team drills.—
Julia Poe,
Chicago Tribune,
26 Mar. 2026
Noun
-
Jami Gertz, part of the Atlanta Hawks ownership group alongside her husband Tony Ressler, has publicly embraced the cultural significance of Magic City.—
Rick Burton,
Sportico.com,
21 Mar. 2026
-
Before Saturday night, no pop concert had ever been held in Seoul’s Gwanghwamun Square, owing to the site’s deep historical and political significance.—
Nicole Fell,
HollywoodReporter,
21 Mar. 2026
Noun
-
Investigation details released Three adult men were finishing a shooting session when one man removed a magazine, covered the muzzle with his hand and accidentally pulled the trigger, authorities said.—
Doug Myers,
CBS News,
22 Mar. 2026
-
Appeals court proceedings unfold largely out of public view and are unlikely to surface new evidence, instead focusing on narrow legal questions about the president’s appointment authority and prosecutorial power.—
Kaelan Deese,
The Washington Examiner,
22 Mar. 2026
Cite this Entry
“Effectiveness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/effectiveness. Accessed 29 Mar. 2026.
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