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
Recent Examples of Synonyms for effectiveness
Noun
-
So, any vaccine safety and efficacy trial includes children who are getting the entire vaccine schedule in addition to the vaccine being tested, providing information on cumulative effects with every new addition.—
ArsTechnica,
ArsTechnica,
25 June 2025 -
In the morning, CDC staff presented data on COVID-19 vaccines, showing safety and efficacy as well as a reduction in hospitalizations and deaths.—
Mary Kekatos,
ABC News,
25 June 2025
Noun
-
This phrase has a clear intent and a violent legacy, and its impact is not theoretical.—
Lisa Katz,
New York Daily News,
22 June 2025
-
As the impact of the strikes was still being assessed Sunday, European and Gulf leaders appeared united in calls for diplomacy and restraint, while Iran’s longtime allies, China and Russia, criticized the aerial assault as a gross escalation that could lead to further war.—
Claire Cameron,
semafor.com,
22 June 2025
Noun
-
The Oscar winner was set to appear in court again in November to hash out the validity of their premarital agreement, but reached a settlement instead.—
Jack Smart,
People.com,
16 June 2025
-
The Supreme Court majority opinion, delivered by Justice Amy Coney Barrett, argued that the Tax Court does not have the authority to consider the validity of an individual's tax obligations in the absence of a levy.—
Jenna Sundel
Jason Lemon,
MSNBC Newsweek,
12 June 2025
Noun
-
Trump's dispatching of his top emissary to Los Angeles at a time of turmoil surrounding the Israel-Iran war and the U.S.' future role in it signals the political importance Trump places on his hard-line immigration policies.—
Arkansas Online,
Arkansas Online,
22 June 2025
-
China imports the majority of its oil from neighboring Russia, but the importance of Iran should not be overlooked.—
Timothy Nerozzi,
The Washington Examiner,
22 June 2025
Noun
-
Knee push-ups can also be a good starting point depending on your current strength level.—
Jenny McCoy,
SELF,
16 June 2025
-
Oh talked about her star turn on Grey’s Anatomy before urging Dartmouth graduates to find inner strength and kindness towards themselves to overcome discomfort in their own lives.—
Etan Vlessing,
HollywoodReporter,
16 June 2025
Noun
-
Jennings said the preservation and rehabilitation of the chapel is crucial due to its historical and architectural significance, and community value.—
Damenica Ellis,
Charlotte Observer,
24 June 2025
-
Several hundred locals gathered outside the property gates on Sunday to protest the detention center and call for the protection of the land, stressing its special significance to Native Americans as well as conservationists, according to member station WGCU.—
Rachel Treisman,
NPR,
24 June 2025
Noun
-
Painful consequences The lower court, looking carefully at the evidence, found that the overall weight of authority supports gender-affirming care for transgender youth.—
Erwin Chemerinsky,
Mercury News,
22 June 2025
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Others see the Iranian authorities as being behind them.—
Sophie Tanno,
CNN Money,
21 June 2025
Noun
-
In journalism, visibility and virality are not the standard—credibility is.—
Ime Ekpo,
Forbes.com,
21 June 2025
-
Authenticity builds trust and credibility, making your brand more personal, memorable and relatable.—
Rolling Stone Culture Council,
Rolling Stone,
20 June 2025
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Cite this Entry
“Effectiveness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/effectiveness. Accessed 30 Jun. 2025.
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