Thesaurus.com
Dictionary.com
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.

"Unfortunately, we were delusional in our belief that justice would be served," he added.

From BBC • Jun. 8, 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

By August, as problems with users suffering from delusional psychosis appeared in media reports, OpenAI attempted to retire 4o entirely and replace it with a new version, named GPT-5.

From The Wall Street Journal • Feb. 10, 2026

This is a side of Olga I never saw: desperate, clingy, and delusional.

From "I Am Not Your Perfect Mexican Daughter" by Erika L. Sánchez




Vocabulary lists containing delusional


Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "delusional" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com