Authenticalnes or Authenticalness: How To spell?
The word Authenticalnes is misspelled against Authenticalness, a noun meaning "The quality of being authentic; authenticity."
Authenticalness 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:  authenticalne-s  Correct Spelling:  authenticalne-ss 
Check more misspelled words of Authenticalness to spell it correct.