Compounds of 毅

• 毅然
  (n,adj-t,adv-to) fortitude
  firmness
  resolution
• 剛毅
  (adj-na,n) fortitude
  firmness of character
  hardihood
  manliness
• 剛毅果断
  (n,adj-na) dauntless and decisive
  with fortitude and resolution
• 毅然として
  (exp) with resolution