Farsightednes or Farsightedness: How To spell?
The word Farsightednes is misspelled against Farsightedness, a noun meaning "Hypermetropia."
Farsightedness has double 'ss' in the end mispronounced as 's'Remember double 'SS' appears in the end of this word which should not be misspelled with single 'S'
Wrong Spelling:  farsightedne-s  Correct Spelling:  farsightedne-ss 
Find more wrongly spelled words of Farsightedness to spell it well.