Insuficient or Insufficient: How To spell?
The word Insuficient is misspelled against Insufficient, an adjective meaning "Not sufficient; not enough; inadequate to any need, use, or purpose; as, the provisions are insufficient in quantity, and defective in quality."
Insufficient has double "ff" is mispronounced as "f"Remember double 'FF' in between the strings Insu & icient which should not be misspelled with single 'F'
Wrong Spelling:  Insu-f-icient  Correct Spelling:  Insu-ff-icient 
Check more misspelled words of Insufficient to spell it correct.