ir·​re·​vers·​ible | \ ˌir-i-ˈvər-sə-bəl How to pronounce irreversible (audio) \

Definition of irreversible

: not reversible

Other Words from irreversible

irreversibility \ ˌir-​i-​ˌvər-​sə-​ˈbi-​lə-​tē How to pronounce irreversible (audio) \ noun
irreversibly \ ˌir-​i-​ˈvər-​sə-​blē How to pronounce irreversible (audio) \ adverb

Examples of irreversible in a Sentence

He suffered an irreversible loss of vision. The crisis has done irreversible harm to the countries' relations.
Recent Examples on the Web The open question is whether Kyiv can reequip its artillery batteries before the escalating death toll in Donbas results in irreversible damage to the army. David Axe, Forbes, 10 June 2022 Ice sheet and glacier melt in the Arctic will lead to accelerated sea level rise, which could be both irreversible for centuries and disastrous for the planet as the risks of extreme flooding increase. Hannah Ryan, CNN, 10 May 2022 Tomizawa has Alzheimer's, a progressive and irreversible neurological disorder that destroys neurons and shrinks regions of the brain. Heather Chen And Yuki Kurihara, CNN, 11 June 2022 The ubiquity of microplastics is of growing interest and study by researchers because they are associated with potentially irreversible negative environmental effects and could affect human health. Evan Bush, NBC News, 9 June 2022 The unmistakable and irreversible reset has already happened. George Bradt, Forbes, 7 June 2022 And what’s the cap on a comeback when so much of the public tide outside the core fanbase has seemed irreversible? Chris Willman, Variety, 3 June 2022 The Kansas facility announced on social media that Abi was euthanized Sunday morning due to ongoing problems with a tumorous joint, which zookeepers previously described as irreversible. Vanessa Etienne,, 31 May 2022 American Rivers has been at the forefront of river preservation since 1973, boasting 300,000 supporters, members, and volunteers who are endeavoring to stem the aforementioned effects before the damage of human interference becomes irreversible. J.d. Simkins, Sunset Magazine, 25 May 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'irreversible.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of irreversible

1630, in the meaning defined above

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The first known use of irreversible was in 1630

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Last Updated

27 Jun 2022

Cite this Entry

“Irreversible.” Dictionary, Merriam-Webster, Accessed 28 Jun. 2022.

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More Definitions for irreversible


ir·​re·​vers·​i·​ble | \ ˌir-i-ˈvər-sə-bəl How to pronounce irreversible (audio) \

Kids Definition of irreversible

: impossible to change back to a previous condition : impossible to reverse irreversible harm


ir·​re·​vers·​ible | \ ˌir-i-ˈvər-sə-bəl How to pronounce irreversible (audio) \

Medical Definition of irreversible

: incapable of being reversed : not reversible an irreversible medical procedure : as
a : impossible to make run or take place backward irreversible chemical syntheses
b of a colloid : incapable of undergoing transformation from sol to gel or vice versa
c of a pathological process : of such severity that recovery is impossible irreversible brain damage

Other Words from irreversible

irreversibility \ -​ˌvər-​sə-​ˈbil-​ət-​ē How to pronounce irreversible (audio) \ noun, plural irreversibilities
irreversibly \ -​ˈvər-​sə-​blē How to pronounce irreversible (audio) \ adverb


ir·​re·​ver·​si·​ble | \ ˌir-rə-ˈvər-sə-bəl How to pronounce irreversible (audio) \

Legal Definition of irreversible

: not reversible an irreversible decision

More from Merriam-Webster on irreversible

Nglish: Translation of irreversible for Spanish Speakers

Britannica English: Translation of irreversible for Arabic Speakers


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