Unactivenes or Unactiveness: How To spell?
The word Unactivenes is misspelled against Unactiveness, a noun meaning "Inactivity."
Unactiveness 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:  unactivene-s  Correct Spelling:  unactivene-ss 
Find more wrongly spelled words of Unactiveness to spell it well.