Impuisant or Impuissant: How To spell?
The word Impuisant is misspelled against Impuissant, an adjective meaning "Weak; impotent; feeble."
Impuissant has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings impui & ant which should not be misspelled with single 'S'
Wrong Spelling:  impui-s-ant  Correct Spelling:  impui-ss-ant 
Check more misspelled words of Impuissant to spell it correct.