Delusional

de·lu·sion  (d-lzhn)

n.

1.

a. The act or process of deluding.

b. The state of being deluded.

2. A false belief or opinion: labored under the delusion that success was at hand.

3. Psychiatry A false belief strongly held in spite of invalidating evidence, especially as a symptom of mental illness: delusions of persecution.

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[Middle English delusioun, from Latin dlsi, dlsin-, from dlsus, past participle of dldere, to delude; see delude.]

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de·lusion·al adj.

Thesaurus

Adj.

1.

delusional - suffering from or characterized by delusions psychoneurotic, neurotic - affected with emotional disorder