Unsuferable or Unsufferable: How To spell?
The word Unsuferable is misspelled against Unsufferable, an adjective meaning "Insufferable."
Unsufferable has double "ff" is mispronounced as "f"Remember double 'FF' in between the strings Unsu & erable which should not be misspelled with single 'F'
Wrong Spelling:  Unsu-f-erable  Correct Spelling:  Unsu-ff-erable 
Check more misspelled words of Unsufferable to spell it correct.