unfilled       
adjective uk/ʌnˈfɪld/ us/ʌnˈfɪld/
 (工作或职位)空缺的
An unfilled job or position has no one doing or holding it.
  McCaffrey's job remains unfilled. 麦克卡弗雷的职位还空缺着。 
 All the hospitals in the area have unfilled positions right now. 这一地区所有医院都有空缺的职位。