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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.

"I think the thing young founders get wrong is they view hours worked in and of itself as necessary and sufficient to think of themselves as productive. And that's where the fallacy lies", he explains.

From BBC • Feb. 8, 2026

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

From MarketWatch • Nov. 15, 2025

“There’s this fallacy that companies were lowering the bar,” she says.

From The Wall Street Journal • Nov. 13, 2025

The promise is that we can shape behavior; the fallacy is that the power rarely reaches beyond cosmetic concessions.

From Salon • Aug. 28, 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