Dictionary Home » Dictionary Definitions » delusion

delusion

Listen See in Thesaurus See in a sentence

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.

(noun)

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.

See delusion in Webster's New World College Dictionary

noun

a deluding or being deluded
a false belief or opinion
Psychiatry a false, persistent belief maintained in spite of evidence to the contrary

Origin: ME delusioun < LL delusio < delusus, pp. of deludere

Related Forms:

delusional adjective

See delusion in American Heritage Dictionary 4

noun

a. The act or process of deluding.
b. The state of being deluded.
A false belief or opinion: labored under the delusion that success was at hand.
Psychiatry A false belief strongly held in spite of invalidating evidence, especially as a symptom of mental illness: delusions of persecution.

Origin:

Origin: Middle English delusioun

Origin: , from Latin dēlūsiō, dēlūsiōn-

Origin: , from dēlūsus

Origin: , past participle of dēlūdere, to delude; see delude

Related Forms: