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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Antonyms & Near Antonyms
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
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Last year’s conference-final loss to the Florida Panthers — an ugly result for an overmatched roster that had spent the regular season outkicking its coverage, maximizing its performance and raising expectations to an unreasonable level — is on that ledger, too.—
Sean Gentille,
New York Times,
28 May 2026
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That lingering inventory, which has drawn criticism from fans who believe the list prices are unreasonable, is a principal feature of the governing body’s ticket pricing strategy.—
Sara Germano,
Sportico.com,
28 May 2026
Adjective
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In the case that led to the large sanction, Quinn Emanuel’s client Natera needed to show that science backed up the advertising statements its rival Guardant alleged were false and misleading, Chen noted in his order.—
Ethan Baron,
Mercury News,
27 May 2026
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Job descriptions are too rigid and titles are often misleading and neither tends to truly capture what people actually do.—
Keith Ferrazzi,
Forbes.com,
27 May 2026
Adjective
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Carpenter says the disturbing encounters left her fearful for her safety and that of relatives living with her, as police label the suspect’s fixation irrational and increasingly dangerous.—
Emily St. Martin,
Los Angeles Times,
2 June 2026
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Great startups often look irrational at first.—
Anna Demeo,
Forbes.com,
31 May 2026
Adjective
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What happens when a shopping agent follows a prompt, buys from a deceptive merchant and the virtual card protects the primary account but not the customer’s time or money?—
Ron Schmelzer,
Forbes.com,
27 May 2026
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For these commemorative watches, Aeschlimann thought white ceramic was appropriate not only because of the color, but because of the material’s deceptive toughness.—
Bloomberg,
Mercury News,
27 May 2026
Adjective
-
Bainbridge knew about secrets and unreasoning shame.—
Christopher Tayler,
Harpers Magazine,
27 Jan. 2026
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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
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Today, rumors circulating on social media in the DRC include false claims that Ebola is not real, that humanitarian workers are descending on the area solely for their own profit and that aid groups are withholding the best care available.—
Gabrielle Emanuel,
NPR,
29 May 2026
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In January, Roberts pleaded guilty to making a false statement for employment and one count of unlawfully possessing a firearm while being in the country illegally.—
Corky Siemaszko,
NBC news,
29 May 2026
Adjective
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After testing against other economic variables that may have contributed to higher costs, and comparing housing activity in high-fraud ZIP codes to low-fraud ones in the same county, the researchers found illegitimate PPP loans to be one of the core drivers of housing prices.—
Tristan Bove,
Fortune,
29 May 2026
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That does not automatically mean every lawsuit involving a president and an executive agency is illegitimate.—
Andrew Leahey,
Forbes.com,
29 May 2026
Adjective
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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 3 Jun. 2026.
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