Noun: delusion di'loo-zhun
- (psychology) an erroneous belief that is held in the face of evidence to the contrary
"His delusion that he was being constantly watched by the government persisted despite lack of evidence";
- psychotic belief
- A mistaken or unfounded opinion or idea
"he has delusions of competence";
- hallucination
- The act of deluding; deception by creating illusory ideas
"She has a delusion that she is being spied on";
- illusion, head game [informal]
Derived forms: delusions
Type of: deceit, deception, dissembling, dissimulation, mental condition, mental state, misconception, psychological condition, psychological state
Encyclopedia: Delusion