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
The device uses heat therapy combined with SonicGlow to activate your skin care by assisting with deeper absorption and effectiveness.
—
Tory Johnson, ABC News, 13 Apr. 2026
But this loss of horsepower and expertise has come at the cost of her own effectiveness in the role—if, that is, effectiveness is really the goal to begin with.
—Quinta Jurecic, The Atlantic, 13 Apr. 2026
Shaffer said that information could be very helpful for monitoring the effectiveness of sand replenishment projects.
—Barbara Henry, San Diego Union-Tribune, 13 Apr. 2026
Some dietary supplements can alter the absorption, metabolism, or elimination of a medication, which may affect its potency and effectiveness.
—Emmanuella Ogbonna, Health, 13 Apr. 2026
The effectiveness of bypass routes in Saudi Arabia and the UAE has reinforced their value during conflict.
—Amena Bakr, semafor.com, 13 Apr. 2026
The big takeaway here is, stainless-steel cladding noticeably negates the effectiveness of copper’s thermal conductivity.
—Wilder Davies, Bon Appetit Magazine, 13 Apr. 2026
Instead, the detergent merely loses some of its effectiveness for getting clothing spic'n'span.
—Melissa Locker, Southern Living, 12 Apr. 2026
Now, despite its celebrity and effectiveness, steel presents numerous drawbacks.
—New Atlas, 10 Apr. 2026
Tory Johnson, ABC News, 13 Apr. 2026
But this loss of horsepower and expertise has come at the cost of her own effectiveness in the role—if, that is, effectiveness is really the goal to begin with.
—Quinta Jurecic, The Atlantic, 13 Apr. 2026
Shaffer said that information could be very helpful for monitoring the effectiveness of sand replenishment projects.
—Barbara Henry, San Diego Union-Tribune, 13 Apr. 2026
Some dietary supplements can alter the absorption, metabolism, or elimination of a medication, which may affect its potency and effectiveness.
—Emmanuella Ogbonna, Health, 13 Apr. 2026
The effectiveness of bypass routes in Saudi Arabia and the UAE has reinforced their value during conflict.
—Amena Bakr, semafor.com, 13 Apr. 2026
The big takeaway here is, stainless-steel cladding noticeably negates the effectiveness of copper’s thermal conductivity.
—Wilder Davies, Bon Appetit Magazine, 13 Apr. 2026
Instead, the detergent merely loses some of its effectiveness for getting clothing spic'n'span.
—Melissa Locker, Southern Living, 12 Apr. 2026
Now, despite its celebrity and effectiveness, steel presents numerous drawbacks.
—New Atlas, 10 Apr. 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
-
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
-
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
-
Snow over the Denver metro area may start late Friday morning into the afternoon with minor impacts.—
Dave Aguilera,
CBS News,
16 Apr. 2026
-
The impact sent a baby’s car seat flying.—
Meredith Colias-Pete,
Chicago Tribune,
15 Apr. 2026
Noun
-
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
-
Officers will also look at the safety of the vehicle, use of seatbelts and the validity of the operator’s license.—
Anne Gelhaus,
Mercury News,
5 Apr. 2026
Noun
-
Mauresmo repeated the importance of privacy for players — an issue raised by Iga Swiatek and Gauff at this year's Australian Open.—
ABC News,
ABC News,
16 Apr. 2026
-
Martone deflected a point shot from Matvei Michkov, the 21-year-old Russian who navigated an uneven first half of the season only to heat up as the games heightened in importance down the stretch.—
CBS News,
CBS News,
15 Apr. 2026
Noun
-
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
-
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
-
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
-
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
-
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
-
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.merriam-webster.com/thesaurus/effectiveness. Accessed 18 Apr. 2026.
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