Irremissible \Ir`re*mis"si*ble\, a. [L. irremissibilis: cf. F.
irr['e]missible. See {In-} not, and {Remissible}.]
Not remissible; unpardonable; as, irremissible crimes.
--Burke. -- {Ir`re*mis"si*ble}, n. -- {Ir`re*mis"si*bly},
adv.
[1913 Webster]