Compounds of 豹変

• 豹変
  (n,vs) sudden change
  complete change
• 君子豹変
  (n) (1) the wise readily adapt themselves to changed circumstances
  the wise are quick to acknowledge their mistakes and correct them
  (2) (in colloquial usage, ironically or as an excuse) the wise make no scruple in suddenly changing their demeanor
• 君子豹変す
  (exp) (id) A wise man changes his mind, a fool never