noun Etymology: Middle English, from Late Latin delusion-, delusio, from deludere Date: 15th century 1. the act of deluding ; the state of being deluded 2. a. something that is falsely or delusively believed or propagated b. a persistent false psychotic belief regarding the self or persons or objects outside the self that is maintained despite indisputable evidence to the contrary; also the abnormal state marked by such beliefs • delusional adjectivedelusionary adjective Synonyms: delusion, illusion, hallucination, mirage mean something that is believed to be true or real but that is actually false or unreal. delusion implies an inability to distinguish between what is real and what only seems to be real, often as the result of a disordered state of mind <
delusions of persecution
. illusion implies a false ascribing of reality based on what one sees or imagines <
an illusion of safety
. hallucination implies impressions that are the product of disordered senses, as because of mental illness or drugs <
suffered from terrifying hallucinations
. mirage in its extended sense applies to an illusory vision, dream, hope, or aim <
claimed a balanced budget is a mirage

New Collegiate Dictionary. 2001.


Look at other dictionaries:

  • delusion — delusion, illusion overlap in meaning because both are to do with things wrongly believed or thought for various reasons. There is, however, a distinguishing principle: a delusion is a wrong belief regarded from the point of view of the person… …   Modern English usage

  • Delusion — De*lu sion . [L. delusio, fr. deludere. See {Delude}.] 1. The act of deluding; deception; a misleading of the mind. Pope. [1913 Webster] 2. The state of being deluded or misled. [1913 Webster] 3. That which is falsely or delusively believed or… …   The Collaborative International Dictionary of English

  • delusion — delusion, illusion, hallucination, mirage denote something which is believed to be or is accepted as being true or real but which is actually false or unreal. Delusion in general implies self deception or deception by others; it may connote a… …   New Dictionary of Synonyms

  • délusion — ⇒DÉLUSION, subst. fém. A. PSYCH. Synon. de délire (cf. POROT 1960). B. PSYCHOL. Erreur de perception dans laquelle un objet réel induit la connaissance. L entendement humain et mortel (...) comme la somme de toutes les délusions (Philos., Relig …   Encyclopédie Universelle

  • delusion — index artifice, bad faith, deception, error, fallacy, false pretense, figment, hoax, insanity …   Law dictionary

  • delusión — f. *Ilusión: engaño de los sentidos. * * * delusión. f. ilusión (ǁ concepto o imagen sin verdadera realidad) …   Enciclopedia Universal

  • delusion — act of misleading someone, early 15c.; as a form of mental derangement, 1550s, from L. delusionem (nom. delusio) a deceiving, from pp. stem of deludere (see DELUDE (Cf. delude)). Technically, delusion is a belief that, though false, has been… …   Etymology dictionary

  • delusion — [di lo͞o′zhən] n. [ME delusioun < LL delusio < delusus, pp. of deludere] 1. a deluding or being deluded 2. a false belief or opinion 3. Psychiatry a false, persistent belief maintained in spite of evidence to the contrary delusional adj.… …   English World dictionary

  • Delusion — (lat.), Verspottung, Täuschung; delusorisch, täuschend, trügerisch …   Meyers Großes Konversations-Lexikon

  • delusion — [n] misconception, misbelief apparition, blunder, casuistry, chicanery, daydream, deception, deceptiveness, dream, eidolon, error, fallacy, false impression, fancy, fantasy, figment*, fool’s paradise*, ghost, hallucination, head trip*, ignis… …   New thesaurus

  • delusión — f. ilusión (ǁ concepto o imagen sin verdadera realidad) …   Diccionario de la lengua española

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