D defs.my
Entry 2 senses Webster, 1913

Irreversible

/ĭrˌ-ĭv-ẽrs'-əb-əl/ · Ir·re·vers·i·ble · IPA /ˌɪr.ɪˈvɝ.sə.bəl/
01 a. Incapable of being reversed or turned about or back; incapable of being made to run backward; as, an irreversible engine; an irreversible p…
  1. 1.
    Incapable of being reversed or turned about or back; incapable of being made to run backward; as, an irreversible engine; an irreversible process; an irreversible reaction.
  2. 2.
    Incapable of being reversed, recalled, repealed, or annulled; as, an irreversible sentence or decree.
    “This rejection of the Jews, as it is not universal, so neither is it final and irreversible.” — Jortin.