idiom · living in extreme poverty where one cannot be sure of basic survival or the next meal

他失业多年，家徒四壁，生活早已朝不虑夕。

idiom · in a state of imminent crisis or danger where survival or safety is uncertain from one moment to the next

由于战乱，那个国家的政权已经陷入了朝不虑夕的境地。