Belief in something false; the state of being delusional.

Suffering from delusions; having false or faulty beliefs. / Being or relating to a delusion.

A person suffering from a delusion.

In a delusional way.

(psychiatry) The quality or state of being delusional.

plural of delusional

(psychiatry) a delusional disorder in which affected individuals experience uncontrolled hallucination in which they are infested with parasites, insects, or bugs

A mental disorder characterized by isolated delusions without any accompanying symptoms like hallucinations, thought disorder or flat affect.

plural of delusional disorder