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[dih-loo-zhuh-nl] /dɪˈlu ʒə 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.
Sometimes, delusionary. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for delusional
  • You're either very good at self-satire, or delusional.
  • We were dripping wet, delusional from lack of sleep, and just wishing that our trip wasn't about to end.
  • Some experts are so out of touch with reality, they're borderline delusional.
  • But if anybody was delusional last season, it was the producers.
  • Optimism is a valuable tool, even when wielded by the delusional.
  • The delusional award goes to you sir.
  • In excess, it can lead to compulsive or delusional behavior.
  • They're not delusional: Independent tests lend credence to the issue.
  • Many describe the men as depressed or delusional.
  • Their future is being robbed by delusional and irrational mobsters.
Word Origin and History for delusional

1871, from delusion + -al (1).

Online Etymology Dictionary, © 2010 Douglas Harper
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