
A done deal
Irreversible Action
Indicates that an action has been taken and cannot be undone or revised.

The tickets are non-refundable; buying them was a done deal.
Agreement Finality
Used when an agreement has been reached and all parties consider it final and binding.

They shook hands, and the partnership became a done deal.
Colloquial Usage
Commonly used in everyday conversation rather than formal or legal discussions.

I heard you got the promotion, so it's a done deal now, right?
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