Backwardnes or Backwardness: How To spell?
The word Backwardnes is misspelled against Backwardness, a noun meaning "The state of being backward."
Backwardness 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:  backwardne-s  Correct Spelling:  backwardne-ss 
Explore spell check of Backwardness to spell without errors.