Imperfectnes or Imperfectness: How To spell?

The word Imperfectnes is misspelled against Imperfectness, a noun meaning "The state of being imperfect."

Imperfectness 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:  imperfectne-s 
Correct Spelling:  imperfectne-ss 
Explore spell check of Imperfectness to spell without errors.

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