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Definition of irreversible:

  1. Incapable of being reversed or turned about or back; incapable of being made to run backward; as, an irreversible engine.
  2. Incapable of being reversed, recalled, repealed, or annulled; as, an irreversible sentence or decree.


beyond recall, constant, irrevocable, resolute, unalterable, permanent, irrevokable, invariable, change, immutable.

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