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delusion

[/dɪˈluːʒən/]
nounfemininepl: delusions / ilusões
ilusão
1. A false belief or impression that is firmly maintained despite being contradicted by reality or rational argument
He suffered from the delusion that he was a famous actor.
Ele sofria da ilusão de que era um ator famoso.
2. The act or process of deluding; deception
The magician's trick was a clever delusion.
O truque do mágico era uma ilusão bem engenhosa.
3. A psychiatric symptom involving a firmly held false belief despite contradictory evidence
The patient's delusions required psychiatric treatment.
As ilusões do paciente exigiam tratamento psiquiátrico.
Synonyms
illusionmisconceptionfalse beliefhallucinationfantasy
Antonyms
realitytruthfactclarity

Regional Variations

General Brazilian
ilusão
Most common term used in Brazil
Brazil
engano
Alternative usage meaning deception or mistake
Portugal
ilusão
Standard term in European Portuguese
Portugal
delírio
Used specifically for psychiatric delusions

Related Idioms & Phrases

under the delusion that - sob a ilusão de que
labor under a delusion - viver uma ilusão
delusion of grandeur - ilusão de grandeza
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