noun
enemy of the emperor; rebel against the imperial court
Historical term used primarily in pre-modern contexts to refer to those who opposed the imperial court or emperor. Not used in modern political discourse.
鎌倉時代、後鳥羽上皇は北条義時を朝敵とみなした。
In the Kamakura period, the Retired Emperor Go-Toba regarded Hōjō Yoshitoki as an enemy of the imperial court.