cloistered  
adjective uk/ˈklɔɪ.stəd/ us/ˈklɔɪ.stɚd/
  (SEPARATE)      
  与世隔绝的,隐居的,避世的
separated from and communicating little with the outside world
  These academics lead such a cloistered life/existence. 这些学者们过着与世隔绝的隐居生活。 
   (COVERED)      
 回廊围绕的
surrounded by covered passages
  a cloistered courtyard 回廊环绕的庭院