delusional
[dih-loo-zhuh-nl]
- having false or unrealistic beliefs or opinions: Senators who think they will get agreement on a comprehensive tax bill are delusional.
- Psychiatry. maintaining fixed false beliefs even when confronted with facts, usually as a result of mental illness: He was so delusional and paranoid that he thought everybody was conspiring against him.
Show More
Sometimes de·lu·sion·ar·y.
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for delusional
Contemporary Examples
At one point they even told her she was delusional, despite her diffuse ulcerating lesions.
I suppose you can if you were dumb and delusional enough to think that the Emmy voters might liven things up a little bit.
The Biggest Emmys Snubs and Surprises: 'Modern Family,' McConaughey, and MoreKevin Fallon
August 26, 2014
But according expert opinion and the case details released to the public, she was also floridly psychotic and delusional.
Burke insists that he is not nostalgic and he is not delusional.
James Lee Burke Talks About His Fiction, History, and the American DreamDavid Masciotra
July 20, 2014
And delusional thinking can lead to irrational, dangerous behavior.
Historical Examples
The second kind of insanity is called illusional or delusional.
Moral Principles and Medical PracticeCharles Coppens
But the rapt bard was blinded, as his utterances show, by what now almost appears to have been a fit of delusional insanity.
The Brothers' WarJohn Calvin Reed
She's just traded identities—and everything else she does—everything else—stems logically out of her delusional premise.
That Sweet Little Old LadyGordon Randall Garrett (AKA Mark Phillips)
In this study Freud shows out of what infantile forms of thought and instincts the delusional system was built up.
The "melancholic" is evidently Newington's "delusional" without his more accurate discrimination of symptoms.
Benign StuporsAugust Hoch
Word Origin and History for delusional
Online Etymology Dictionary, © 2010 Douglas Harper