Irebuttable or Irrebuttable: How To spell?
The word Irebuttable is misspelled against Irrebuttable, an adjective meaning "Incapable of being rebutted."
Irrebuttable has double "rr" is mispronounced as "r"Remember double 'RR' in between the strings i & ebuttable which should not be misspelled with single 'R'
Wrong Spelling:  i-r-ebuttable  Correct Spelling:  i-rr-ebuttable 
Check more misspelled words of Irrebuttable to spell it correct.