1. 不省人事的；失去知觉的；神志不清的
Someone who is unconscious is in a state similar to sleep, usually as the result of a serious injury or a lack of oxygen.
e.g. By the time ambulancemen arrived he was unconscious...
救护人员到达时他已经不省人事了。
e.g. He was dragged from his van and beaten unconscious by a gang of salmon poachers.
他被一帮盗猎大麻哈鱼的家伙从货车里拽出来打得不省人事。