Obdurednes or Obduredness: How To spell?
The word Obdurednes is misspelled against Obduredness, a noun meaning "Hardness."
Obduredness 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:  obduredne-s  Correct Spelling:  obduredne-ss 
Check more misspelled words of Obduredness to spell it correct.