Cheerfulnes or Cheerfulness: How To spell?
The word Cheerfulnes is misspelled against Cheerfulness, a noun meaning "Good spirits; a state of moderate joy or gayety; alacrity."
Cheerfulness 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:  cheerfulne-s  Correct Spelling:  cheerfulne-ss 
Check more misspelled words of Cheerfulness to spell it correct.