Slicknes or Slickness: How To spell?
The word Slicknes is misspelled against Slickness, a noun meaning "The state or quality of being slick; smoothness; sleekness."
Slickness 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:  slickne-s  Correct Spelling:  slickne-ss 
Find more wrongly spelled words of Slickness to spell it well.