irreparable
adjective
(of an injury or loss) impossible to rectify or repair:
｟かたく｠ 〈損害･傷などが〉修復［回復］不可能な, 取り返しのつかない
e.g. they were doing irreparable damage to my heart and lungs.
DERIVATIVES
irreparableness noun
irreparability |ˌi(r)ˌrep(ə)rəˈbilədē| noun
ORIGIN
late Middle English: via Old French from Latin irreparabilis, from in- ‘not’ + reparabilis (see reparable).