delusional

[ dih-loo-zhuh-nl ]

/ dɪˈlu ʒə nl /

SEE SYNONYMS FOR delusional ON THESAURUS.COM

adjective

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.

Words nearby delusional

deluge, delusion, delusion of grandeur, delusion of negation, delusion of persecution, delusional, delusive, delusterant, delustering, deluxe, delvaux

Sometimes de·lu·sion·ar·y.

Examples from the Web for delusional

At one point they even told her she was delusional, despite her diffuse ulcerating lesions.
Why Your Doctor Feels Like a 'Beaten Dog'|Daniela Drake|September 11, 2014|DAILY BEAST
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 More|Kevin Fallon|August 26, 2014|DAILY BEAST
But according expert opinion and the case details released to the public, she was also floridly psychotic and delusional.
Postpartum Stigma: Why My Patient Committed Suicide|Jean Kim|August 5, 2014|DAILY BEAST
Burke insists that he is not nostalgic and he is not delusional.
James Lee Burke Talks About His Fiction, History, and the American Dream|David Masciotra|July 20, 2014|DAILY BEAST

And delusional thinking can lead to irrational, dangerous behavior.
One Breakdown Can Mean Losing Your Kid Forever|ProPublica|May 30, 2014|DAILY BEAST
He was delusional on religious subjects and thought the attendants were doing wrong.
The Autobiography of a Thief|Hutchins Hapgood
In this study Freud shows out of what infantile forms of thought and instincts the delusional system was built up.
Collected Papers on Analytical Psychology|C. G. Jung
But in many cases of delusional insanity the cause is hidden; neither pulse nor other medical test betrays it.
Moral Principles and Medical Practice|Charles Coppens
On his transfer to our Hospital he readily carries over his delusional ideas to the officials here.
Studies in Forensic Psychiatry|Bernard Glueck
Hence we may suspect that moral insanity is likely to bring on delusional insanity, and vice versa.
Moral Principles and Medical Practice|Charles Coppens