Healthfulnes or Healthfulness: How To spell?
The word Healthfulnes is misspelled against Healthfulness, a noun meaning "The state of being healthful."
Healthfulness 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:  healthfulne-s  Correct Spelling:  healthfulne-ss 
Check more misspelled words of Healthfulness to spell it correct.