既き成せい事じ実じつ

noun

established fact; fait accompli

Refers to a situation that has already happened and cannot be undone, often used in legal, political, or interpersonal contexts where someone creates a fact to force acceptance.

• 彼かれは既き成せい事じ実じつを作つくってから上じょう司しに報ほう告こくした。

  He created a fait accompli and then reported it to his boss.