Grandiosity

Grandiosity is chiefly associated with narcissistic personality disorder, but also commonly features in manic or hypomanic episodes of bipolar disorder.

It refers to an unrealistic sense of superiority, a sustained view of oneself as better than others that causes the narcissist to view others with disdain or as inferior. It also refers to a sense of uniqueness, the belief that few others have in common with oneself and that one can only be understood by a few or very special people.

Grandiosity is distinct from grandiose delusions, in that the sufferer has insight into their loss of touch with reality (they are aware that their behavior is considered unusual).

Narcissistic criteria for grandiosity
The grandiosity section of the Diagnostic Interview for Narcissism (DIN) (Second edition) is as follows:
 * 1) The person exaggerates talents, capacity and achievements in an unrealistic way.
 * 2) The person believes in her/his invulnerability or does not recognise his/her limitations.
 * 3) The person has grandiose fantasies.
 * 4) The person believes that he/she does not need other people.
 * 5) The person regards himself/herself as unique or special when compared to other people.
 * 6) The person regards himself/herself as generally superior to other people.
 * 7) The person behaves self-centeredly and/or self-referentially.
 * 8) The person appears or behaves in a boastful or pretentious way.