Last Updated：2025/11/22

The quality of being irreplaceable; inability to be replaced, often because of being unique.

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irreplaceability

Source Word

irreplaceability

Noun

uncountable

The quality of being irreplaceable; inability to be replaced, often because of being unique.

Japanese Meaning

他に代替できるものがなく、一度失うと取り戻すことが出来ないという性質、すなわち「かけがえのなさ」

Her irreplaceability in the team became clear when she solved the problem no one else could.

彼女のチームにおけるかけがえのなさは、他の誰も解決できなかった問題を彼女が解決したときに明らかになった。

Sense（1）

The quality of being irreplaceable; inability to be replaced, often because of being unique.