narcissist
n. countablen. someone who thinks about themselves too much and admires their own appearance or abilities. You use this to describe a person who lacks care for others because they are so focused on themselves.
n. a person who displays an excessive interest in or admiration of themselves. In clinical psychology, an individual with a specific personality disorder characterised by grandiosity and a profound lack of empathy.
My former boss was a narcissist who never listened to anyone else.
He proved to be a complete narcissist, constantly steering every conversation back to his own achievements and ignoring his friends' problems.
The novel's protagonist is an unrepentant narcissist whose inability to recognise the emotional needs of his family ultimately leaves him isolated in his sprawling, empty mansion.
From Narcissus (“a character in Greek mythology who became obsessed with his own reflection”) + -ist.
Frequently modified by adjectives like 'malignant' or 'covert' in psychological contexts, and 'complete' or 'total' in everyday speech.