Compactnes or Compactness: How To spell?
The word Compactnes is misspelled against Compactness, a noun meaning "The state or quality of being compact; close union of parts; density."
Compactness 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:  compactne-s  Correct Spelling:  compactne-ss 
Find more incorrect spellings of Compactness to spell right way.