Well, if I read correctly, one of the other answer still counts here :

H Y P Er Co N Sc I O U Sn Es Se S (20 letters)

H Y P Er Co Ag U La Bi Li Ti Es (20 letters)
 Credit to @slv for the answer on the other puzzle.

Well, if I read correctly, one of the other answer still counts here :

H Y P Er Co N Sc I O U Sn Es Se S (20 letters)

H Y P Er Co Ag U La Bi Li Ti Es (20 letters) 

  Credit to @slv for the answer on the other puzzle.