Pesimistic or Pessimistic: How To spell?
The word Pesimistic is misspelled against Pessimistic, an adjective meaning "pertaining to pessimism; characterized by pessimism; gloomy; feboding."
Pessimistic has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings pe & imistic which should not be misspelled with single 'S'
Wrong Spelling:  pe-s-imistic  Correct Spelling:  pe-ss-imistic 
Find more wrongly spelled words of Pessimistic to spell it well.