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delusion

Pronunciation: /dɪˈl(j)uːʒ(ə)n/
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Definition of delusion

noun

  • an idiosyncratic belief or impression maintained despite being contradicted by reality or rational argument, typically as a symptom of mental disorder:the delusion of being watched
  • [mass noun] the action of deluding or the state of being deluded:what a capacity television has for delusion

Phrases

delusions of grandeur

a false impression of one’s own importance.

Derivatives

delusional

adjective

Origin:

late Middle English (in the sense 'act of deluding or of being deluded'): from late Latin delusio(n-), from the verb deludere (see delude)

delusion in other Oxford dictionaries

Definition of delusion in the US English dictionary

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