Phrases Describing Experiences and Events

It was a fait accompli.

C2

Meaning

Something that has already been decided or done and cannot be changed.

Example sentences

John: Is there any chance of changing the schedule?

Alice: I'm afraid not. It was a fait accompli before we even started discussing it.

John: I see. So, it's set in stone?

Alice: Unfortunately, yes. It was a fait accompli, and nothing can be altered.