Iremissible or Irremissible: How To spell?
The word Iremissible is misspelled against Irremissible, an adjective meaning "Not remissible; unpardonable; as, irremissible crimes."
Irremissible has double "rr" is mispronounced as "r"Remember double 'RR' in between the strings i & emissible which should not be misspelled with single 'R'
Wrong Spelling:  i-r-emissible  Correct Spelling:  i-rr-emissible 
Find more wrongly spelled words of Irremissible to spell it well.