Meaning of “narcissism” - Learner’s Dictionary

narcissism

noun [ U ] uk us /ˈnɑːsɪsɪzəm/ formal
narcissistic uk us /ˌnɑːsɪˈsɪstɪk/ adjective

If people or their actions are narcissistic, they show narcissism.

(Definition of “narcissism” from the Cambridge Learner’s Dictionary © Cambridge University Press)