Irreversible

Part of speech: adjective (a.)

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 Incapable of being reversed, recalled, repealed, or annulled; as, an irreversible sentence or decree. This rejection of the Jews, as it is not universal, so neither is it final and irreversible. Jortin.

Synonyms: Irrevocable; irrepealable; unchangeable.