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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Those fears are not unreasonable, either, given the ability of AI to do so many things so well.
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Horn’s assessment wasn’t unreasonable; it was based on recent statements by Greenlandic politicians.
Adjective
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This headline is so misleading.
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Pretending that’s not going to happen is misleading and wrong.
Adjective
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Economist Hyman Minsky spent his career explaining how irrational behavior produces fragility and instability in capitalist systems.
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McClanahan has been close enough to his usual production, but without an irrational need for perfection.
Adjective
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Despite criticism over opaque and deceptive practices, prediction markets’ election favorites won most of the time, a Washington Post analysis found; more liquid in betting markets improves their accuracy, economists told CNN, but could carry negative social costs.
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This is the essence of GPS spoofing, in which an attacker floods a GPS receiver with deceptive signals.
Adjective
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Roosevelt surely understood that nameless, unreasoning, unjustified fear cannot be eradicated.
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Bainbridge knew about secrets and unreasoning shame.
Adjective
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According to the department, at the time of the chase, Buban had multiple outstanding arrest warrants against him, including for being a felon in possession of a firearm, taking a vehicle without consent, false impersonation and petty theft.
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According to Peña, a producer relayed the false information to her through an earpiece during a live broadcast.
Adjective
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Some fraudsters run an illegitimate DME company and get a doctor to prescribe the equipment.
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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.
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.
Cite this Entry
“Fallacious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/fallacious. Accessed 26 Jun. 2026.
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