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Definitions

delusional

[dih-loo-zhuh-nl] / dɪˈlu ʒə nl /


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.

Lucy Osler of the University of Exeter examined how interactions with conversational AI could contribute to false beliefs, distorted memories, altered personal narratives, and even delusional thinking.

From Science Daily • May 11, 2026

They said he displayed ongoing delusional beliefs, and lacked insight into his illness and treatment needs.

From BBC • Apr. 27, 2026

Even so, there is a curious — and hopefully not delusional — optimism in classical music, L.A. style.

From Los Angeles Times • Apr. 3, 2026

While the “number of users” once meant “number of paying users,” the success of Facebook, Instagram and other social-media sites persuaded delusional investors that the word “paying” could be dropped.

From MarketWatch • Feb. 6, 2026

At best Lorren would think I was delusional, at worst, a foolish child.

From "The Name of the Wind" by Patrick Rothfuss




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