- Delusion is defined as a firm belief you have that is actually not grounded in reality or truth, often occurring as a result of a mental problem.
When you hear voices in your head and believe they are the voice of the President or the voice of Jesus communicating personally with you, this is an example of a delusion.
- a deluding or being deluded
- a false belief or opinion
- Psychiatry a false, persistent belief maintained in spite of evidence to the contrary
Origin of delusionMiddle English delusioun ; from Late Latin delusio ; from delusus, past participle of deludere
- a. The act or process of deluding.b. The state of being deluded.
- a. A false belief or opinion: labored under the delusion that success was at hand.b. Psychiatry A false belief or perception that is a manifestation of a mental illness: delusions of persecution.
Origin of delusionMiddle English delusioun, from Latin dēlūsiō, dēlūsiōn-, from dēlūsus, past participle of dēlūdere, to delude; see delude.
- A false belief that is resistant to confrontation with actual facts.
- The state of being deluded or misled.
- That which is falsely or delusively believed or propagated; false belief; error in belief.