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
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
And another is the slippery slope of logical fallacy.
—Shaon Lahiri, The Conversation, 7 July 2025
That’s a nearly identical sum to the amount Fox agreed to pay to Dominion Voting Systems in a 2023 settlement over the channel’s airing of conspiracy theories around Dominion’s voting machines, that fueled the fallacy that Trump won the 2020 presidential election.
—Ethan Baron, Mercury News, 27 June 2025
See All Example Sentences for fallacy
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
And another is the slippery slope of logical fallacy.
—Shaon Lahiri, The Conversation, 7 July 2025
That’s a nearly identical sum to the amount Fox agreed to pay to Dominion Voting Systems in a 2023 settlement over the channel’s airing of conspiracy theories around Dominion’s voting machines, that fueled the fallacy that Trump won the 2020 presidential election.
—Ethan Baron, Mercury News, 27 June 2025
See All Example Sentences for fallacy
Recent Examples of Synonyms for fallacy
Noun
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No more division, distraction, or gender delusions.—
Joshua Rhett Miller,
MSNBC Newsweek,
30 Sep. 2025
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She is caught up in a delusion, convinced that her imaginary accomplice Libardo is accusing her of betrayal.—
Isabella Wandermurem,
Time,
24 Sep. 2025
Noun
-
In a chilling case of deception and domestic violence, what appeared to be months of stalking by an ex-boyfriend turned out to be an elaborate scheme orchestrated by a Colorado woman's own husband, culminating in her murder just days before Christmas.—
Doc Louallen,
ABC News,
26 Sep. 2025
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Methods include propaganda, deception, sabotage and other non-military tactics, the alliance says.—
Sophie Tanno,
CNN Money,
25 Sep. 2025
Noun
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The real loss, at the altar of a warped vision of masculinity, is courage and skill, sacrificed so that a few good men can go on measuring themselves against their own hollow myth of toughness.—
Arman Khan,
Them.,
3 Oct. 2025
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And, in the process, the trio of ’70s babies punctured the myth that rap is a young man’s sport.—
Michael Saponara,
Billboard,
2 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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Vehicles included in this recall may have an error in the instrument panel software at startup, failing to show speed, brake system information, and tire pressure warning lights.—
Olivia Evans,
Louisville Courier Journal,
3 Oct. 2025
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Yes, plenty of errors were made — six of them by shortstop Trevor Story in September alone — but errors are different from gaffes.—
Steve Buckley,
New York Times,
2 Oct. 2025
Noun
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Inter basin transfers created the illusion of abundance.—
Nik Kowsar,
Time,
2 Oct. 2025
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In the 21st century, the moral entrepreneurs include media personalities and social influencers as well as the nonhuman bots and algorithms whose authority is derived by constructing the illusion of broad consensus.—
Ron Barrett,
The Conversation,
2 Oct. 2025
Noun
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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
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This pledge erases dissenting Israeli voices, legitimizes falsehoods, and shields Hamas from blame.—
Etan Vlessing,
HollywoodReporter,
25 Sep. 2025
Cite this Entry
“Fallacy.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/fallacy. Accessed 7 Oct. 2025.
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