what is the definition of narcissistic personality disorder
Narcissistic personality disorder Narcissistic personality disorder (NPD) is a personality disorder with a long-term pattern of abnormal behavior characterized by exaggerated feelings of self-importance, excessive need for admiration, and a lack of empathy.[2][3] Those affected often spend a lot of time thinking about achieving power or success, or on their appearance.[3] They often take advantage of the people around them.[3] The behavior typically begins by early adulthood, and occurs across a variety of social situations.[3]