Meaning of “narcissism” - Learner’s Dictionary

narcissism

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

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

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