Japanese

ふくすいふへん
Meaning: what is done cannot be undone; spilled water cannot return
Part of Speech: Noun, Four-character idiom

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Example

不用意にメールを送った後、彼は覆水不返を痛感した。
After carelessly sending the email, he keenly felt that what was done could not be undone.

Usage Notes

A literary four-character idiom for irreversible actions, broken relationships, or mistakes that cannot be taken back.

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