egomania

 
Pronunciation: /ɛgə(ʊ)ˈmeɪnɪə, iː-/

noun

[mass noun]
  • obsessive egotism or self-centredness.

Derivatives

egomaniac

Pronunciation: /-ˈmeɪnɪak/
noun

egomaniacal

Pronunciation: /-məˈnʌɪək(ə)l/
adjective