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…
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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.
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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Incapable of being reversed, recalled, repealed, or annulled; as, an irreversible sentence or decree.“This rejection of the Jews, as it is not universal, so neither is it final and irreversible.”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.
Syn.
Irrevocable; irrepealable; unchangeable.