baan2 soeng6 deng1 deng1板上釘釘板上钉钉

Jyutpingbaan2 soeng6 deng1 deng1
Yalebáan seuhng dēng dēng
形容詞

Definition

Cast in stone; already decided and impossible to change.

colloquialdescriptions

How it's used

This idiom implies a sense of finality and absolute certainty, often used when a decision has been officially made or a situation has reached a point of no return. It carries a slightly formal or emphatic tone compared to everyday speech, making it effective for stressing that further debate is futile. It is frequently applied to business agreements, project plans, or firm commitments.

Examples

This matter is already set in stone, no need to discuss it further.
You thought it was set in stone, who knew it would change at the last minute?

Common mistake

Do not confuse this with simply saying something is true or correct, as the focus here is specifically on the inability to reverse or alter a decision. It is an idiomatic expression rather than a literal description of a physical action.

Grammar color guide

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