Hypertext Webster Gateway: "irreversible"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Irreversible \Ir`re*vers"i*ble\, 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 Incapable of being reversed, recalled, repealed, or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.
Syn: Irrevocable; irrepealable; unchangeable.
From WordNet (r) 1.7 (wn)
irreversible
adj 1: impossible to reverse or be reversed; "irreversible momentum
toward revolution" [ant: {reversible}]
2: impossible to reverse or undo; "an irreversible decree"
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