患かん禍かかんかMeanings1noundisaster; calamity; troublerare termRare literary term for a serious misfortune or calamity. Not used in everyday conversation; modern Japanese prefers 災難 or 災害.古こ文もん書じょには、その年としの患かん禍かが詳くわしく記しるされている。The ancient document records in detail the calamities of that year.