Wanyu · 万语 Español

一yī成chéng不bù变biàn

Literal
once formed, never changing
Figurative
Staying the same year after year and never changing with the times; usually said reproachfully, of methods, rules or ideas the world has already left behind.

Where does 一成不变 come from?

The wording comes from a passage in the 《礼记》, in the "Royal Regulations" chapter, about punishments: once a sentence has been handed down and settled it can no longer be altered, and so, the text says, whoever judges must give it his full attention beforehand. From that line — 一成而不可变, "once formed, it cannot be changed" — the idiom emerged, and it left the courtroom long ago. Today it covers anything that stays exactly as it was, usually with a note of criticism: methods, rules or habits that ought to move with the times and don't. It also shows up negated a lot — 这不是一成不变的, "this isn't set in stone."

Source (出处): 《礼记·王制》

How is 一成不变 used? Two examples

  • 这zhè家jiā店diàn的de菜cài单dān几jǐ年nián来lái一yī成chéng不bù变biàn,老lǎo顾gù客kè早zǎo就jiù吃chī腻nì了le。

    This place's menu hasn't changed in years, and the regulars are sick of it by now.

  • 世shì界jiè变biàn化huà这zhè么me快kuài,我wǒ们men的de想xiǎng法fǎ也yě不bù该gāi一yī成chéng不bù变biàn。

    The world changes so fast that our thinking shouldn't stay stuck either.

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