Egomania's an obsessive preoccupation with one's self and applies to someone who follows their own ungoverned impulses and's possessed by delusions of personal greatness and feels a lack of appreciation. Someone suffering from this extreme egocentric focus's an egomaniac. The condition's psychologically abnormal and has been attributed to various historical figures and celebrities. Application of terminology Some bosses have been described as suffering from egomania. These bosses are said to be… (More on Egomania)