Unnecesity or Unnecessity: How To spell?
The word Unnecesity is misspelled against Unnecessity, a noun meaning "The state of being unnecessary; something unnecessary."
Unnecessity has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings unnece & ity which should not be misspelled with single 'S'
Wrong Spelling:  unnece-s-ity  Correct Spelling:  unnece-ss-ity 
Find more wrongly spelled words of Unnecessity to spell it well.