1
as in delusion
a false idea or belief
the once-common fallacy that girls just weren't any good at math
Synonyms & Similar Words
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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
This is a logical fallacy—specifically, a misinterpretation of categorical logic.
—
Lance Eliot, Forbes, 6 Mar. 2025
One such skill is identifying logical fallacies and inconsistencies in arguments, both of which errors are exemplified in Mr. Williams’ article.
—Reader Commentary, Baltimore Sun, 7 May 2025
That fallacy is now deeply entrenched in the U.S. mindset, thanks to generations of leaders who believed that diplomacy would create a liberal utopia.
—A. Wess Mitchell, Foreign Affairs, 22 Apr. 2025
To understand the financial fallacy behind the idea that $5,000 is a reasonable return on the investment required to raise a child, just ask any parent their thoughts.
—Aisha Nyandoro, Forbes.com, 30 Apr. 2025
See All Example Sentences for fallacy
Lance Eliot, Forbes, 6 Mar. 2025
One such skill is identifying logical fallacies and inconsistencies in arguments, both of which errors are exemplified in Mr. Williams’ article.
—Reader Commentary, Baltimore Sun, 7 May 2025
That fallacy is now deeply entrenched in the U.S. mindset, thanks to generations of leaders who believed that diplomacy would create a liberal utopia.
—A. Wess Mitchell, Foreign Affairs, 22 Apr. 2025
To understand the financial fallacy behind the idea that $5,000 is a reasonable return on the investment required to raise a child, just ask any parent their thoughts.
—Aisha Nyandoro, Forbes.com, 30 Apr. 2025
See All Example Sentences for fallacy
Recent Examples of Synonyms for fallacy
Noun
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Although she was never formally diagnosed, E.A. believes Lewes may have experienced bipolar disorder, marked by episodes of extreme paranoia and delusions, which became more frequent as time went on.—
Jordana Comiter,
People.com,
5 June 2025
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Valerie often allowed her vanity and delusion to stand in her way, but also has a certain purity in her desire for mainstream success; viewers on the show’s wavelength might alternately cringe, laugh and feel deeply for her over the course of just a few minutes.—
Daniel D'Addario,
Variety,
5 June 2025
Noun
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Recently recovered emails, messages, photos, and videos reveal the depths of the deception.—
Dominic Patten,
Deadline,
9 June 2025
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Even commercial amusements that played with illusion, such as trompe l’oeil paintings and chess-playing automatons, helped train Americans of all classes to identify the signs of deception.—
Literary Hub,
Literary Hub,
9 June 2025
Noun
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The myth had inspired many works by Old Masters, including several paintings by Titian.—
Rebecca Mead,
New Yorker,
9 June 2025
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The line between the reality and the myth becomes blurred, and this confusion continues to harm women, especially those who are isolated and silenced.—
Anna Marie de la Fuente,
Variety,
8 June 2025
Noun
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The government has admitted in court that his deportation was an administrative error.—
Kaelan Deese,
The Washington Examiner,
7 June 2025
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At least some of the errors produced by his code can be traced to using older versions of OpenAI models available through the VA — models not capable of solving complex tasks, according to the experts consulted by ProPublica.—
Brandon Roberts,
ProPublica,
6 June 2025
Noun
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High ceilings, tall doors, oversized windows, and a herringbone parquet floor with oversized proportions were also key to creating the illusion of extra space.—
Mailin Sophie Zieser,
Architectural Digest,
7 June 2025
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While there is a warming and cooling sensation associated with these products, the ingredients act on nerve endings to create an illusion of hot and cold.—
Novant Health,
Charlotte Observer,
6 June 2025
Noun
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But a prosecutor dismissed the statement as just the most recent in a string of falsehoods.—
Harriet Ryan,
Los Angeles Times,
3 June 2025
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Trump repeats pro-Russian talking points, such as the falsehood that Ukraine started the war.—
German Lopez,
New York Times,
16 May 2025
Cite this Entry
“Fallacy.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/fallacy. Accessed 20 Jun. 2025.
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