narcissistic

Concise Oxford English Dictionary © 2008 Oxford University Press:
narcissism /ˈnɑːsɪsɪz(ə)m, nɑːˈsɪs-/

▶noun excessive or erotic interest in oneself and one's appearance.

– derivatives
narcissist noun,
narcissistic adjective,
narcissistically adverb.

– origin C19: from Narcissus, the name of a beautiful youth in Greek mythology who fell in love with his own reflection in a pool, + -ism.