1
as in unreasonable
not using or following good reasoning
it's fallacious to say that something must exist because science hasn't proven its nonexistence
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Antonyms & Near Antonyms
2
as in misleading
tending or having power to deceive
consumers who harbor the fallacious belief that credit-card spending will never catch up with them
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Example Sentences
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Recent Examples of fallacious
The same economists who believe in the same fallacious economic notions?
—
John Tamny, Forbes.com, 6 July 2025
Lawyers who argued for his ouster on behalf of the National Assembly said the claims by Mr. Yoon were fallacious.
—Choe Sang-Hun, New York Times, 1 Apr. 2025
That will in turn spread on social media, which often plays a disproportional role in boosting these disinformation efforts by providing nearly unlimited platforms for unfiltered content and fallacious and deceptive claims.
—Peter Suciu, Forbes, 23 Dec. 2024
There might be a bigger market for these products, and more consumers might be immune to the fallacious argument that they’re overly processed, if more people were persuaded of the ills of factory farming.
—Kenny Torrella, Vox, 7 Dec. 2018
See All Example Sentences for fallacious
John Tamny, Forbes.com, 6 July 2025
Lawyers who argued for his ouster on behalf of the National Assembly said the claims by Mr. Yoon were fallacious.
—Choe Sang-Hun, New York Times, 1 Apr. 2025
That will in turn spread on social media, which often plays a disproportional role in boosting these disinformation efforts by providing nearly unlimited platforms for unfiltered content and fallacious and deceptive claims.
—Peter Suciu, Forbes, 23 Dec. 2024
There might be a bigger market for these products, and more consumers might be immune to the fallacious argument that they’re overly processed, if more people were persuaded of the ills of factory farming.
—Kenny Torrella, Vox, 7 Dec. 2018
See All Example Sentences for fallacious
Recent Examples of Synonyms for fallacious
Adjective
-
The Fourth Amendment protects people against unreasonable searches and seizures.—
Eve Chen,
USA Today,
6 Feb. 2026
-
Those are clear violations of the Fourth Amendment’s safeguards against unreasonable searches and seizures, which were adopted to prevent the exercise of arbitrary government power.—
Yohuru Williams,
The Conversation,
4 Feb. 2026
Adjective
-
This is both obvious and a bit misleading.—
Shayna Goldman,
New York Times,
9 Feb. 2026
-
By the end of his first term, The Washington Post had documented 30,573 false or misleading claims.—
Letters to the Editor,
The Orlando Sentinel,
8 Feb. 2026
Adjective
-
Away from the irrational exuberance, there are still sensible investments to be made.—
Mikael Johnsson,
Fortune,
6 Feb. 2026
-
The move would be both economically irrational and morally obtuse.—
Ruth Jean-Marie,
Time,
3 Feb. 2026
Adjective
-
Savings are only on brand names, which can be deceptive when comparing prices.—
Tom Gavin,
EverydayHealth.com,
10 Feb. 2026
-
Novo has so far filed around 130 lawsuits dealing with deceptive marketing practices and consumer fraud, Kuckelman said.—
Annika Kim Constantino,
CNBC,
9 Feb. 2026
Adjective
-
Bainbridge knew about secrets and unreasoning shame.—
Christopher Tayler,
Harpers Magazine,
27 Jan. 2026
-
Let sound political prescience but take the place of an unreasoning prejudice, and this will be done.—
Frederick Douglass,
The Atlantic,
16 Aug. 2017
Adjective
-
Authorities did not provide additional details about the agents' apparently false statements.—
Nicole Acevedo,
NBC news,
13 Feb. 2026
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Nevertheless, Worden continued to promote the false claim to news outlets and hired a media consultant to amplify it, the documents said.—
Marc Ramirez,
USA Today,
13 Feb. 2026
Adjective
-
Rather than allay the concerns about her electability, Crockett has treated them as illegitimate and even racist.—
Jonathan Chait,
The Atlantic,
5 Feb. 2026
-
At the start of the season, Sophie — who was born out of an illegitimate relationship between her father, Lord Penwood, and her mother, his maid and mistress — is living with and working for Lady Araminta (Katie Leung), her father's widow.—
Jordana Comiter,
PEOPLE,
31 Jan. 2026
Adjective
-
In each case, the actual right to your body is deferred to some third party, either the paternalists, the hypothetical children, or unreasoned authority.—
Kyle Munkittrick,
Discover Magazine,
20 June 2011
Cite this Entry
“Fallacious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/fallacious. Accessed 14 Feb. 2026.
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