unrelieved
adjective [ usually before noun ] formal uk/ˌʌn.rɪˈliːvd/ us/ˌʌn.rɪˈliːvd/
（糟糕的形势或情绪）未改善的，未缓和的
When a bad situation or emotion is unrelieved, it is continuous and never improves, not even for a short period.
She held the family together through years of unrelieved poverty. 她带领全家人一起度过了贫困的漫长岁月。