Defness or Deafness: How To spell?

The word Defness is misspelled against Deafness, a noun meaning "Incapacity of perceiving sounds; the state of the organs which prevents the impression which constitute hearing; want of the sense of hearing."

Deafness has vowels 'ea' together mispronounced as 'e'
Word contains consecutive vowels 'EA' in between alphabets d & fness is misspelled as 'E'
Wrong Spelling:  d-e-fness 
Correct Spelling:  d-ea-fness 
Explore spell check of Deafness to spell without errors.

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