Definition of irreparable adjective from the Oxford Advanced Learner's Dictionary

 

irreparable

 adjective
adjective
BrE BrE//ɪˈrepərəbl//
 
; NAmE NAmE//ɪˈrepərəbl//
 
 
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(of a loss, injury, etc.) too bad or too serious to repair or put right to cause irreparable damage/harm to your health Her death is an irreparable loss. opposite repairable Word Origin late Middle English: via Old French from Latin irreparabilis, from in- ‘not’ + reparabilis (from reparare ‘make ready again’, from re- ‘back’ + parare ‘make ready’).
See the Oxford Advanced American Dictionary entry: irreparable