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
Synonyms & Similar Words
Antonyms & Near Antonyms
Example Sentences
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Recent Examples of fallacy
This fallacy is repeated in innumerable geography textbooks, as well as travel articles and guides.
—
Joe Rao, Space.com, 19 Sep. 2025
The Takeaway For Leaders The real fallacy is thinking that a number of pilots is movement.
—Aditya Vikram Kashyap, Forbes.com, 18 Sep. 2025
Trying to pin down what a novelist actually believes is a sure way to get trapped in a labyrinth of misreadings and fallacies.
—Jeremy Gordon, The Atlantic, 12 Sep. 2025
For example, a common fallacy is the belief that things were better in some imagined past.
—Zach Helfand, New Yorker, 25 Aug. 2025
See All Example Sentences for fallacy
Joe Rao, Space.com, 19 Sep. 2025
The Takeaway For Leaders The real fallacy is thinking that a number of pilots is movement.
—Aditya Vikram Kashyap, Forbes.com, 18 Sep. 2025
Trying to pin down what a novelist actually believes is a sure way to get trapped in a labyrinth of misreadings and fallacies.
—Jeremy Gordon, The Atlantic, 12 Sep. 2025
For example, a common fallacy is the belief that things were better in some imagined past.
—Zach Helfand, New Yorker, 25 Aug. 2025
See All Example Sentences for fallacy
Recent Examples of Synonyms for fallacy
Noun
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Don’t let delusions (especially those planted by gaslighters) guide your thoughts and heart.—
Lisa Stardust,
Refinery29,
14 Oct. 2025
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Chatbots are known to validate users’ obsessions and delusions, and most of the litigation around this phenomenon has so far pertained to self-harm, as in the suits Jain has brought against OpenAI and Character Technologies.—
Miles Klee,
Rolling Stone,
11 Oct. 2025
Noun
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Everything can be used as a tool for good and to build, or for bad and destruction and deception.—
Marc Malkin,
Variety,
14 Oct. 2025
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The question now is whether our ability to detect deception can evolve as fast as the tools that create it.—
Big Think,
Big Think,
13 Oct. 2025
Noun
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Arizona is home to numerous local legends, myths, and supernatural tales.—
Tiffany Acosta,
AZCentral.com,
17 Oct. 2025
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The series explores Bollywood myths and realities in a very insider way.—
Naman Ramachandran,
Variety,
16 Oct. 2025
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.—
Lance Eliot,
Forbes.com,
24 Aug. 2025
Noun
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There aren’t any obvious errors that can be laid at Darlow’s door over the past four matches.—
Beren Cross,
New York Times,
16 Oct. 2025
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Sponsors assume no responsibility for any error, omissions, interruption, deletion, defect or delay in operation with transmission, communications, line failure, theft or destruction or unauthorized access to or allegation of submissions.—
CNN Money,
CNN Money,
16 Oct. 2025
Noun
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Inspired by mirrors, which reflect reality while simultaneously generating illusion, the collection explored the tension between the two.—
Denni Hu,
Footwear News,
17 Oct. 2025
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Her research examines people’s beliefs about what others think of them, including illusions and biases that can interfere with social connection, and interventions to improve people’s social lives.—
Maya Rossignac-Milon
Erica Boothby,
CNBC,
17 Oct. 2025
Noun
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The President didn’t help his case by spreading outlandish falsehoods.—
Jeannie Suk Gersen,
New Yorker,
12 Oct. 2025
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Her vicious falsehoods are especially harmful now, at the moment when all Americans need to find common ground and affirm that political violence is never, ever acceptable.—
DP Opinion,
Denver Post,
29 Sep. 2025
Cite this Entry
“Fallacy.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/fallacy. Accessed 19 Oct. 2025.
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