effectiveness

noun

Definition of effectivenessnext
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 Implement a digital visual-management platform across six facilities to standardize workflows and improve infection prevention, care coordination, workforce effectiveness, quality, and patient safety. — Arkansas Democrat-Gazette, Arkansas Online, 27 Aug. 2026 Apart from the penalty, Meta agreed as part of the settlement to algorithmic changes that could dampen engagement and the effectiveness of its advertising, dampening investor sentiment toward the resolution of the case. — Tobias Burns, CNBC, 26 Aug. 2026 Tehrani-Bagha said chemical binders used in pigment printing and water-repellent finishes could reduce its effectiveness. — Alexandra Harrell, Footwear News, 26 Aug. 2026 But the effectiveness of AI when given the reins for making trades remains to be seen. — Joshua Hong, Fortune, 26 Aug. 2026 The agreement builds on restrictions and safety tools that Meta had already rolled out by default as part of its Teen Accounts settings — the effectiveness of which had been questioned by the states and some experts. — Clare Duffy, CNN Money, 26 Aug. 2026 Yesterday, the states brought Instagram head Adam Mosseri to the stand and questioned him about the effectiveness of some features added to Instagram to try to keep teens from using it too much. — John Ruwitch, NPR, 26 Aug. 2026 The effectiveness of that duo waned last campaign under Kris Knoblauch, to the point where the pain affecting the rest of the forward group wasn’t worth it. — Janson Duench, New York Times, 25 Aug. 2026 And if anything can be learned from last year, the effectiveness of rookies can directly be tied to team success, which makes Proctor’s words at the end of the team scrimmage ring especially true. — Miami Herald, 25 Aug. 2026
Recent Examples of Synonyms for effectiveness
  1. conclusiveness
  2. efficacy
  3. impact
  4. validity
  5. importance
  6. strength
  7. significance
  8. authority
Noun
  • On Friday morning, Burke’s defense team tried to sow doubt about the conclusiveness of the autopsy conducted in the case.
    — Richard Winton, Los Angeles Times, 24 July 2026
  • But his dictionary, with its conclusiveness, was a huge publishing success.
    — Louis Menand, New Yorker, 22 Dec. 2025
Definition of conclusiveness
Noun
  • The protein building blocks can have anti-inflammatory and muscle-building properties – though studies and safety analyses of their benefits and efficacy as supplements or injections vary widely.
    — Cara Kelly, USA Today, 30 Aug. 2026
  • These second-generation antihistamines have similar efficacy, fewer undesirable side effects, and far less potential for abuse, according to the FDA.
    — Dr. Jill Grimes, CNN Money, 29 Aug. 2026
Definition of efficacy
Noun
  • Freshman wide receiver Jonathon Lee is making an immediate impact on the program.
    — Michael Osipoff, Chicago Tribune, 29 Aug. 2026
  • Therefore, analysts note that if extreme weather worsens water and power scarcity, the impact could ripple through the entire semiconductor supply chain.
    — , CNBC, 28 Aug. 2026
Definition of impact
Noun
  • Hudak indicated in Friday’s news conference that police are looking into the validity of the document.
    — Michelle Marchante, Miami Herald, 28 Aug. 2026
  • And as with the actual Stanford prison experiment, questions of ethics and scientific validity are sidelined in favor of getting splashy results by any means necessary.
    — Angie Han, HollywoodReporter, 27 Aug. 2026
Definition of validity
Noun
  • Thanks to my friends’ beloved babies and the perks of my job—which have included putting together a list of essential children’s books—I’ve been thinking a lot about the importance of reading with children.
    — Emma Sarappo, The Atlantic, 28 Aug. 2026
  • Fame was of prime importance to the ancient Greeks, and Wilson is the rare classical scholar who has firsthand knowledge of a public life.
    — ABC News, ABC News, 28 Aug. 2026
Definition of importance
Noun
  • The show is leaning into its strengths, dialing up the madcap comedy and overlapping dialogue while keeping the story lines rooted in recognizable rites of passage for young people.
    — Ben Rosenstock, Vulture, 28 Aug. 2026
  • Divya brings an incredible depth and emotional strength to the ensemble, and the combination of these three actors makes the world of the film particularly special.
    — Naman Ramachandran, Variety, 27 Aug. 2026
Definition of strength
Noun
  • The first prince of Norwegian descent born in 567 years, his birth held special significance for the young Norwegian monarchy.
    — Stefania Conrieri, Vanity Fair, 28 Aug. 2026
  • Two days later, then-Defense Secretary Lloyd Austin canceled them, saying a decision of such significance should rest with him.
    — Kaelan Deese, The Washington Examiner, 27 Aug. 2026
Definition of significance
Noun
  • On Monday, shortly after authorities began downgrading some mandatory evacuation orders to warnings around Somersett, Washoe County Sheriff Darin Balaam said people were already venturing too far into dangerous wildlands.
    — Los Angeles Times, Los Angeles Times, 26 Aug. 2026
  • The fourth person, who's at large, has not yet been identified by authorities.
    — Ana Maria Soler, CBS News, 26 Aug. 2026
Definition of authority

Browse Nearby Words

effectively
effectiveness
effects
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Cite this Entry

“Effectiveness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/effectiveness. Accessed 1 Sep. 2026.

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