How to tell if your parent is narcissistic... Narcissism is very much on a scale⦠with Narcissistic Personality Disorder (NPD) being at the extreme end, and selfish, self-obsessed and difficult behaviours at the lower. Growing up with a narcissistic, emotionally immature, selfish, neglectful, punitive, controlling or overbearing parent can have a lasting impact on their children and other relatives. Having a narcissistic parent often means that others in the family adopt othe