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1. Characteristic of those having an inflated idea of their own importance
   "This may especially be the case when a parent has egotistical tendencies or narcissistic personality disorder";
   - egotistic, narcissistic, self-loving
    
2. Characteristic of false pride; having an exaggerated sense of self-importance
   "an egotistical disregard of others";
   - conceited, egotistic, self-conceited, swollen, swollen-headed, vain, proud, puffed-up [informal], swellheaded [N. Amer, informal]

See also: proud, self-interested, selfish

Encyclopedia: Egotistical