1
as in delusion
a false idea or belief
the once-common fallacy that girls just weren't any good at math
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Antonyms & Near Antonyms
2
as in deception
the quality or state of being false
the fallacy of the notion of spontaneous generation was demonstrated by the Dutch naturalist Leeuwenhoek
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Antonyms & Near Antonyms
Example Sentences
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Recent Examples of fallacy
To be clear, the narrative that American businesses have disappeared from the climate discussion is a fallacy.
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Justin Worland, Time, 14 Nov. 2025
Such fallacies are utterly unacceptable anywhere…The Chinese military will continue to take necessary measures to resolutely safeguard national sovereignty and security, and firmly uphold regional peace and stability.
—Ryan Chan, MSNBC Newsweek, 31 Oct. 2025
The fallacy of screen time holds that measuring a ubiquitous phenomenon provides information that allows for control of that phenomenon—that keeping records of a chronic state will give rise to certain habits of self-healing.
—Ian Bogost, The Atlantic, 23 Oct. 2025
But these far-right personalities were pushing an absurd logical fallacy.
—Stephanie McNeal, Glamour, 7 Oct. 2025
See All Example Sentences for fallacy
Recent Examples of Synonyms for fallacy
Noun
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The National Institute of Neurological Disorders and Stroke said paralytic dementia symptoms can include delusions along with memory and language problems.—
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But in this version, set in a contemporary world resembling our own, where politics is a spectacle, the main character’s delusions revolve around television.—
Noun
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McCoy is charged with theft by deception, violation of oath of office, and three counts of false statements and writings.—
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Harper got fired for the aforementioned deception.—
Noun
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Because of this rare condition, superstitions and myths have permeated certain African countries, both positive and negative.—
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Ignore the one-page resume ‘myth’ DeMase recommends certain nuts-and-bolts resume formatting guidelines to further help make it through applicant tracking system firewalls.—
Noun
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Of course, the retort is that this would be irritating and exasperating to be continually deluged with alerts about AI deceptiveness.—
Noun
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The federal government primarily finances supplemental food benefits, but the state’s share is determined, in part, by its management, as indicated by its rate of error when determining people’s eligibility.—
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The research depended on computer simulations, which meant that tiny adjustments to the initial state of the digital fluid (or any digital rounding errors) wouldn’t affect the fluid’s fate.—
Noun
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Still, there are some footwear styles and silhouettes that work better for women on the shorter side, helping give the illusion of a higher stature.—
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Her sister, Kali, has the power to create illusions, so the Eleven that everyone witnessed in her final moments could have been fake, and the real Eleven could have slipped away without being detected.—
Noun
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Some contained falsehoods and disinformation.—
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In an interview before the meeting, Franco said the Department of Children and Families's letter contained multiple falsehoods and that nothing is stopping it from giving the funds to another agency.—
Cite this Entry
“Fallacy.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/fallacy. Accessed 13 Jan. 2026.
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