Obsoletenes or Obsoleteness: How To spell?
The word Obsoletenes is misspelled against Obsoleteness, a noun meaning "Indistinctness; want of development."
Obsoleteness 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:  obsoletene-s  Correct Spelling:  obsoletene-ss 
Find more incorrect spellings of Obsoleteness to spell right way.