ADJ 未减轻的；未得缓解的 If you describe something unpleasant as unrelieved, you mean that it is very severe and is not replaced by anything better, even for a short time. 未减轻的；未得缓解的
...unrelieved misery.
难以释怀的悲痛
The sun baked down on the concrete, unrelieved by any breeze. [+ by]