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
Relevance
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
Denialists tend to cherry-pick evidence, set impossible levels of evidence and engage in logical fallacies.
—
H. Christopher Frey, The Conversation, 5 June 2025
The list of projects that fall prey to the sunk cost fallacy are legion.
—Neil Senturia, San Diego Union-Tribune, 16 June 2025
And the fallacy is that trade deficits actually mean anything.
—Isabel Danzis, ABC News, 18 May 2025
To learn more about the facts behind his fallacies, here’s a list of 100 separate false claims Trump has made since his inauguration.
—Jade Walker, CNN Money, 30 Apr. 2025
See All Example Sentences for fallacy
H. Christopher Frey, The Conversation, 5 June 2025
The list of projects that fall prey to the sunk cost fallacy are legion.
—Neil Senturia, San Diego Union-Tribune, 16 June 2025
And the fallacy is that trade deficits actually mean anything.
—Isabel Danzis, ABC News, 18 May 2025
To learn more about the facts behind his fallacies, here’s a list of 100 separate false claims Trump has made since his inauguration.
—Jade Walker, CNN Money, 30 Apr. 2025
See All Example Sentences for fallacy
Recent Examples of Synonyms for fallacy
Noun
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In certain contexts, that unrestrained flattery might lead to psychological distress: In recent months, there have been growing reports of individuals experiencing AI psychosis, in which extensive conversations with chatbots may have amplified delusions.—
Lila Shroff,
The Atlantic,
24 July 2025
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That's a chronic mental health condition where a person experiences symptoms of schizophrenia, such as hallucinations or delusions, and mood disorders like depression.—
Steve Drummond,
NPR,
23 July 2025
Noun
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Last summer, an exponentially growing audience of fans watched her fall head-over-heels for Brit Aaron Evans, only to be left heartbroken over his deception and sobbing to an entirely too appropriate Sabrina Carpenter song chosen by the show's editors.—
KiMi Robinson,
USA Today,
19 July 2025
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Finding The Right Balance The cost of workplace deception is more than just a nasty surprise come employee feedback day.—
Dmitry Malin,
Forbes.com,
15 July 2025
Noun
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Reason 2: The Obsession with Control The second myth plaguing modern business is the assumption that complex systems can be controlled through tighter management processes.—
Tima Bansal,
Forbes.com,
11 July 2025
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In my own writing, the process of myth making fascinates me.—
Irenosen Okojie
July 11,
Literary Hub,
11 July 2025
Noun
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Without a robust knowledge foundation, these early wins can mask serious risks—from compliance breaches to costly decision errors.—
Stéphane Donzé,
Forbes.com,
25 July 2025
-
Pilot error caused the crash, according to a final report from the National Transportation Safety Board.—
Perry Vandell,
AZCentral.com,
25 July 2025
Noun
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Binaural beats are an auditory illusion created when two tones of slightly different frequencies are played separately into each ear at the same time.—
Noma Nazish,
Forbes.com,
26 July 2025
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The only way to have preserved its life in advance preparation would have been to give a harsh defensive clearcut to the pines that surrounded it, taking away the sound of wind through the branches and stripping the lodge of one of its best elements: the illusion of organic emergence.—
Tom Zoellner,
AZCentral.com,
25 July 2025
Noun
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After Obama had served two terms in the White House, a Morning Consult poll found a third of Republicans still believed that falsehood.—
USA Today,
USA Today,
20 July 2025
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Complex contagion may have taken hold, in a malicious way, and begun spreading falsehood throughout the network at a rapid pace.—
Shaon Lahiri,
The Conversation,
7 July 2025
Cite this Entry
“Fallacy.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/fallacy. Accessed 1 Aug. 2025.
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