English dictionary

delusion

/d/I/'l/u//Z//@/n/

Definitions, examples, synonyms and antonyms from WordNet 3.0.

noun

(psychology) an erroneous belief that is held in the face of evidence to the contrary

noun.state

Synonyms psychotic belief

Source: WordNet 3.0
a mistaken or unfounded opinion or idea

noun.cognition

Examples
He has delusions of competence.

Synonyms hallucination

Source: WordNet 3.0
the act of deluding; deception by creating illusory ideas

noun.act

Synonyms head game illusion

Source: WordNet 3.0
The act of deluding; deception; a misleading of the mind.

noun

Source: webster1913