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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If these requirements are not met, the search is unreasonable and therefore unlawful, and evidence obtained in that search cannot be used in court, barring a good-faith exception.
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Justices ruled that sweeping use of cellphone data requires a warrant, a decision applying the Fourth Amendment, which protects against unreasonable searches and seizures, to new technology.
Adjective
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Democrats on the House Natural Resources Committee released a report this week criticizing the president and Freedom 250, accusing it of diverting funds and misleading sponsors.
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The charge alleges a person knowingly defrauded another by using false or misleading information to obtain money, property, credit or a loan.
Adjective
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The reflex, from a distance, is to call this irrational.
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If people believe regulatory caution invalidates every legal claim, courts may look irrational.
Adjective
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Shadow fleet vessels disguise their identity and purpose through a broad range of deceptive activities, including spoofing their locations and destinations.
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The complaint alleged deceptive advertising and other misconduct.
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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The charge alleges a person knowingly defrauded another by using false or misleading information to obtain money, property, credit or a loan.
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Opponents of Amendment 5 have flatly called the advertisement misleading or false.
Adjective
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That difference suggests that the government sees this extension of patent rights as an illegitimate way for a company to exclude other companies from competing.
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Some fraudsters run an illegitimate DME company and get a doctor to prescribe the equipment.
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 4 Jul. 2026.
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