solipsism

/หˆsษ‘lษชpsษชzm/

IPA: /S AH0 L IH1 P S IH0 Z AH0 M/

noun
  1. 1

    The theory that the self is all that exists or that can be proven to exist.

  2. 2

    Self-absorption, an unawareness of the views or needs of others; self-centeredness; egoism.

Source: https://en.wiktionary.org/wiki/solipsism