取とり返かえしがつかない

expression

cannot be undone; irreversible; can't be recovered from

Used when a mistake, loss, or damage is permanent and cannot be fixed or compensated. Often implies a serious, regrettable situation.

See also: 取り返しのつかない

• 一いち度ど失うしなった信しん頼らいは取とり返かえしがつかない。

  Once lost, trust cannot be regained.

• この失しっ敗ぱいは取とり返かえしがつかないものだ。

  This failure is irreversible.