Once the archive was digitized and the originals discarded, the loss of the paper watermarks became irrevocable.
档案数字化并销毁原件后，纸张水印的丢失便无可挽回。
Which choice best defines “irrevocable”?
A — Impossible to undo or change.. “irrevocable” means Impossible to undo or change..
Which word means “Impossible to undo or change.”?
A — irrevocable. “irrevocable” means Impossible to undo or change..
irrevocable — Impossible to undo or change.. In Chinese: 无法挽回的;不可撤销的.
irrevocable is pronounced //ɪˈrevəkəbl//.
Once the archive was digitized and the originals discarded, the loss of the paper watermarks became irrevocable. (档案数字化并销毁原件后，纸张水印的丢失便无可挽回。)
irreversible, permanent, binding — all close in meaning to irrevocable (Impossible to undo or change.).
reversible, revocable — each the opposite of irrevocable (Impossible to undo or change.).
Yes. irrevocable is on the SAT Prep Difficult list — the higher-register words that decide the hard questions. The Digital SAT does not test vocabulary in isolation; words like this one are tested through Words in Context questions, where you choose the word that completes a passage most logically and precisely.
ir(不) + revoke(撤回) + -able → 无法收回 → 不可挽回。