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Synonyms

irrevocable

American  
[ih-rev-uh-kuh-buhl] / ɪˈrɛv ə kə bəl /

adjective

  1. not to be revoked or recalled; unable to be repealed or annulled; unalterable.

    an irrevocable decree.


irrevocable British  
/ ɪˈrɛvəkəbəl /

adjective

  1. not able to be revoked, changed, or undone; unalterable

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Derived Forms

Etymology

Origin of irrevocable

First recorded in 1350–1400; a Middle English word from the Latin word irrevocābilis; see ir- 2, revocable

Explanation

If you're on a diet but eat one tiny piece of chocolate, it might start an irrevocable slide into bad eating. Describe something as irrevocable if it cannot be undone or taken back. If you break down irrevocable, you wind up with ir "not," re "back" and vocable from the Latin vocare "to call." So if something is irrevocable, you cannot call it back — it is permanent. You must fulfill an irrevocable promise and live with an irrevocable decision. A law is irrevocable if it states within the law that it cannot be nullified. Now that's final!

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Vocabulary lists containing irrevocable

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Irrevocable trusts can hit the highest income-tax brackets, even at low income levels.

From MarketWatch • May 23, 2026

In 2017, Woods had put the mansion into the Jupiter Island Irrevocable Homestead Trust, an entity he created that has only himself and his two children as beneficiaries.

From Seattle Times • Nov. 16, 2023

In March 2017, Woods had put the mansion into the Jupiter Island Irrevocable Homestead Trust, an entity he created that has only himself and his two children as beneficiaries.

From Washington Times • May 17, 2023

In March 2017, Woods had placed the mansion into the Jupiter Island Irrevocable Homestead Trust, an entity he created that has only himself and his two children as beneficiaries.

From Seattle Times • May 8, 2023

Reasons for Irrevocable Vow The vow to crusade was irrevocable, and sovereigns took it to obtain pardon, to secure glory, and propitiate favor.

From Peter the Hermit A Tale of Enthusiasm by Goodsell, Daniel A.

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