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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.

Osler says this makes chatbots capable of reinforcing delusional thinking.

From The Wall Street Journal • May 25, 2026

The paper examined real-world examples in which generative AI systems became part of the cognitive process of individuals who had been clinically diagnosed with hallucinations and delusional thinking.

From Science Daily • May 11, 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

Diane was either delusional or, more likely, trying to keep her children from ruining dinner.

From "Far from the Tree" by Robin Benway




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