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English definition of “irreversible”

irreversible

adjective     /ˌɪr.ɪˈvɜː.sɪ.bl̩/ US  /-ˈvɝː-/
C2 not possible to change; impossible to return to a previous condition: Smoking has caused irreversible damage to his lungs.Not able to be changedKeeping and staying the same irreversibly     /-bli/ adverb Not able to be changedKeeping and staying the same
(Definition of irreversible adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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