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 This integration enhances operational effectiveness and allows forces to maintain strategic advantage in contested environments. —
Prabhat Ranjan Mishra, Interesting Engineering, 20 Apr. 2026 The real challenge is understanding which tech priorities actually move the business forward and strengthen team culture and effectiveness. —Rolling Stone Culture Council, Rolling Stone, 20 Apr. 2026 Diverting those funds undermines both the intent of voters and the effectiveness of new legislative efforts. —Heidi Williams, Denver Post, 19 Apr. 2026 Availability and effectiveness are not always one in the same, however, and the Ducks will have to bring their game up multiple levels in a hurry. —Andrew Knoll, Oc Register, 19 Apr. 2026 Ceci and Dumoulin had little positive impact on the Kings, who slipped in terms of defensive effectiveness, regressed tremendously in the transition game and plummeted all the way to 30th of 32 teams on the penalty kill. —Andrew Knoll, Daily News, 18 Apr. 2026 Historically, this committee has been composed of experts in all aspects of vaccination, from development through clinical trials of safety and effectiveness, to the impact of vaccines on disease prevention. —Professor David R. Hill, Hartford Courant, 17 Apr. 2026 Kennedy has long sown doubt in the safety and effectiveness of the measles, mumps, rubella (MMR) vaccine. —Arthur Jones Ii, ABC News, 17 Apr. 2026 That emphasis on ease and effectiveness is why the campaign's focus on accessibility resonates so strongly with Fisher. —Brittany Talarico, PEOPLE, 17 Apr. 2026
Prabhat Ranjan Mishra, Interesting Engineering, 20 Apr. 2026 The real challenge is understanding which tech priorities actually move the business forward and strengthen team culture and effectiveness. —Rolling Stone Culture Council, Rolling Stone, 20 Apr. 2026 Diverting those funds undermines both the intent of voters and the effectiveness of new legislative efforts. —Heidi Williams, Denver Post, 19 Apr. 2026 Availability and effectiveness are not always one in the same, however, and the Ducks will have to bring their game up multiple levels in a hurry. —Andrew Knoll, Oc Register, 19 Apr. 2026 Ceci and Dumoulin had little positive impact on the Kings, who slipped in terms of defensive effectiveness, regressed tremendously in the transition game and plummeted all the way to 30th of 32 teams on the penalty kill. —Andrew Knoll, Daily News, 18 Apr. 2026 Historically, this committee has been composed of experts in all aspects of vaccination, from development through clinical trials of safety and effectiveness, to the impact of vaccines on disease prevention. —Professor David R. Hill, Hartford Courant, 17 Apr. 2026 Kennedy has long sown doubt in the safety and effectiveness of the measles, mumps, rubella (MMR) vaccine. —Arthur Jones Ii, ABC News, 17 Apr. 2026 That emphasis on ease and effectiveness is why the campaign's focus on accessibility resonates so strongly with Fisher. —Brittany Talarico, PEOPLE, 17 Apr. 2026
Recent Examples of Synonyms for effectiveness
Noun
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But his dictionary, with its conclusiveness, was a huge publishing success.— Louis Menand, New Yorker, 22 Dec. 2025
Noun
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SROs have been controversial, with critics doubting on-campus law enforcement’s efficacy in responding to school shootings.— Jennah Pendleton, Sacbee.com, 16 Apr. 2026
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The upper chamber’s proposal would also have required health care workers to show parents information created by the state medical board about a vaccine’s risks, benefits, safety and efficacy.— Garrett Shanley, Miami Herald, 15 Apr. 2026
Noun
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Using these alternatives can have real impact, as fuel consumption from production vehicles and generators has been found to be the single largest contributor of carbon emissions on film and television sets.— Katie Kilkenny, HollywoodReporter, 22 Apr. 2026
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Eco effort The property utilized a variety of natural construction materials and renewable energy sources to minimize its impact.— Condé Nast, Condé Nast Traveler, 22 Apr. 2026
Noun
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There have also been a few ransom notes linked to the case, though their validity still remains unclear at this time.— Jessica Schladebeck, New York Daily News, 16 Apr. 2026
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The family received numerous ransom notes since Nancy Guthrie was taken, and yet did not pay any ransom, which points to the police being unable to ascertain the validity of the notes or a lack of proof of life attached to them.— Lizzie Lanuza, StyleCaster, 7 Apr. 2026
Noun
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The discovery of the shipwrecks confirms the importance of the bay as a maritime hub of regional and global significance, the researchers said.— Amarachi Orie, CNN Money, 22 Apr. 2026
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Reading about the history and mythology of how the Great Law of Peace came to be, one is struck by the importance the Haudenosaunee attributed to things like processing grief and personal transformation, such as those of Hiawatha and Tadodaho.— Tim Brinkhof, JSTOR Daily, 22 Apr. 2026
Noun
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As his hands grow steady again, Levell hopes others living with Parkinson's find strength in their own journey.— Amelia Mugavero, CBS News, 17 Apr. 2026
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Among a raft of reforms Warsh has previously indicated he’d like to see at the central bank—advancing a bullish outlook on the productivity benefits of AI, the strength of which could provide the basis for an argument to begin a rate-cutting cycle.— Eleanor Pringle, Fortune, 16 Apr. 2026
Noun
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Yet Monday’s flyby — the first time humans had reached the moon since 1972 — held emotional significance for the crew and space enthusiasts beyond the mission’s technical objectives.— Noah Haggerty, Los Angeles Times, 11 Apr. 2026
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The true significance of Pakistan's intervention only became clear when both sides agreed to a pause shortly after a down-to-the-wire plea from the country's prime minister, Shehbaz Sharif.— Betsy Joles, NPR, 11 Apr. 2026
Noun
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Morales, wearing camouflage and armed with a long rifle, then escaped the home through a window, authorities said, per the Visalia Times-Delta.— Charlotte Phillipp, PEOPLE, 12 Apr. 2026
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Heightened terror threat Whether the group is real or not, European authorities are taking the threat seriously, even as the United States and Iran have entered into a fragile ceasefire.— Lauren Kent, CNN Money, 11 Apr. 2026
Cite this Entry
“Effectiveness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.grautoblog.com/thesaurus/effectiveness. Accessed 24 Apr. 2026.
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