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Definitions

fallacy

[fal-uh-see] / ˈfæl ə si /


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

One tenacious fallacy about Shakespeare is that his speeches are always clotted with gargantuan words; Macbeth’s “multitudinous seas incarnadine” is a classic example.

From The Wall Street Journal • Apr. 22, 2026

“A major fallacy is assuming that policies that work in one country will automatically work in another,” Josh Michaud, the associate director of global health and public health policy at KFF, told Salon.

From Salon • Jan. 11, 2026

The sunk-cost fallacy tempts people to pay escalating premiums because they’ve paid for so long.

From MarketWatch • Nov. 15, 2025

And as long as we believe in this fallacy of separation, that’s going to continue.”

From Los Angeles Times • Aug. 4, 2025

Thus, the sunk cost fallacy is the mistaken belief that the money you once paid for something has anything to do with what it might now be worth.

From "The Long-Lost Home" by Maryrose Wood




Vocabulary lists containing fallacy


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