irreversible

adjective

ir·​re·​vers·​ible ˌir-i-ˈvər-sə-bəl How to pronounce irreversible (audio)
: not reversible
irreversibility noun
irreversibly 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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The death penalty is a cruel and irreversible punishment that is racially biased, and ineffective as a deterrent. Paul Du Quenoy, MSNBC Newsweek, 26 Mar. 2025 Failing to take a proactive approach could lead to irreversible ethical and existential consequences. Tim Bates, Forbes, 13 Mar. 2025 Last year was also the first in which the world crossed the threshold of 1.5°C of warming over pre-industrial levels that the Paris Climate Accord declared a benchmark to be avoided, lest the planet tip into irreversible climate catastrophe. Jeffrey Kluger, TIME, 13 Mar. 2025 View 1 Images Eye injuries that damage the cornea are usually irreversible and cause blindness. Michael Irving, New Atlas, 8 Mar. 2025 See All Example Sentences for irreversible

Word History

First Known Use

1630, in the meaning defined above

Time Traveler
The first known use of irreversible was in 1630

Browse Nearby Words

Cite this Entry

“Irreversible.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/irreversible. Accessed 9 Apr. 2025.

Kids Definition

irreversible

adjective
ir·​re·​vers·​ible ˌir-i-ˈvər-sə-bəl How to pronounce irreversible (audio)
: impossible to reverse
an irreversible chemical reaction
irreversible damage
irreversibility noun
irreversibly adverb

Medical Definition

irreversible

adjective
ir·​re·​vers·​ible ˌir-i-ˈvər-sə-bəl How to pronounce irreversible (audio)
: 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
irreversibility noun
plural irreversibilities
irreversibly adverb

Legal Definition

irreversible

adjective
ir·​re·​ver·​si·​ble ˌir-rə-ˈvər-sə-bəl How to pronounce irreversible (audio)
: not reversible
an irreversible decision

More from Merriam-Webster on irreversible

Last Updated: - Updated example sentences
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