self-delusion

noun

plural self-delusions
1
: the act of deluding oneself or the state of being deluded by oneself especially concerning one's true nature, abilities, feelings, etc.
My god-given talent for self-delusion keeps me believing that the increasing amount of time I spend alone is of my own choice …Matthew Ritger
They know what they are doing is wrong. And it's our job to remind them of it. Because when we don't continually remind them, people devolve into self-delusion.Jessica Valenti
2
: a delusion that one has concerning oneself
… a star of immense talent who harbored no self-delusions.Eric Marchese

Examples of self-delusion in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
This kind of self-delusion is a good thing. Olga Khazan, The Atlantic, 13 Feb. 2026 Still, the dinner is an unpleasant study in power and self-delusion. Amanda Whiting, Vulture, 26 Jan. 2026 What Naples decidedly doesn’t have is chaos and self-delusion. Peter Lane Taylor, Forbes.com, 3 Feb. 2026 Huang’s comments may one day be remembered as the peak of the AI bubble—the classic moment that occurs in every bubble when hubris and self-delusion overtake common sense. Alexei Oreskovic, Fortune, 26 Feb. 2026 See All Example Sentences for self-delusion

Word History

First Known Use

1625, in the meaning defined at sense 1

Time Traveler
The first known use of self-delusion was in 1625

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Cite this Entry

“Self-delusion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/self-delusion. Accessed 7 Jul. 2026.

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