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
-
Hartsuch appealed, but in October 2025, the Iowa Court of Appeals upheld the district court’s ruling, setting the stage for Hartsuch’s newest lawsuit alleging the board’s actions were unreasonable, violated his rights and destroyed his livelihood.—
Clark Kauffman,
Iowa Capital Dispatch,
28 Feb. 2026
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Too much one-sidedness can deplete both enthusiasm and resources — and wanting a roughly reciprocal relationship is not unreasonable.—
Judith Martin,
Dallas Morning News,
28 Feb. 2026
Adjective
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These false or misleading statements are characteristic of politicians with questionable integrity who are willing to say anything for political gain.—
Rafael Perez,
Oc Register,
1 Mar. 2026
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Hartsuch, a proponent of using ivermectin to treat COVID-19, alleges that in December 2021, Kent Nebel, then the executive director of the Board of Medicine, indicated that 17 Iowa doctors had complaints filed against them for spreading false or misleading information about COVID-19.—
Clark Kauffman,
Iowa Capital Dispatch,
28 Feb. 2026
Adjective
-
Photograph from Metropolitan Nashville Police Department / AP The pair would stay up late talking at Marone’s house, and when Friedmann got really candid something irrational and thrilling in him emerged.—
James Verini,
New Yorker,
2 Mar. 2026
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But feeling appreciated for kind gestures and hoping that invitations will be reciprocated is not a new, unusual or irrational problem.—
Judith Martin,
Dallas Morning News,
28 Feb. 2026
Adjective
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Then again, averages can be deceptive.—
Burkhard Bilger,
New Yorker,
2 Mar. 2026
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The recovered funds come from 89 separate settlements and other restitution paid back by doctors, nurses and health care systems after fraud investigations related to deceptive billing practices, pill and medication theft, and other fraud.—
Hayleigh Colombo,
IndyStar,
27 Feb. 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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Richards and the governor’s office pushed back on false assertions that Newsom and his wife, First Partner Jennifer Siebel Newsom, were stealing money from the state through her office that same day.—
Taryn Luna,
Los Angeles Times,
6 Mar. 2026
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Air power cannot overthrow a government, some say, which is on one level true—a fighter jet cannot take the keys to the presidential palace, after all—and on another level, obviously false.—
Eliot A. Cohen,
The Atlantic,
6 Mar. 2026
Adjective
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As Sophie Baek, the Cinderella-style housemaid of illegitimate birth who charms the latest eligible Bridgerton bachelor, Ha is exquisite.—
Kathryn VanArendonk,
Vulture,
27 Feb. 2026
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After a whole season exploring the pains of being an illegitimate child and fears of pregnancy, Sophie and Benedict are now free to have children that would be welcomed warmly into society.—
Jennifer Maas,
Variety,
27 Feb. 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 7 Mar. 2026.
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