Meaning of irremissible

ir•re•mis•si•ble

Pronunciation: (ir"i-mis'u-bul), [key]
— adj.
  1. not remissible; unpardonable, as a sin.
  2. unable to be remitted or postponed, as a duty.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.