unwatered

Not watered.

(без степеней сравнения)Lacking water: not having been provided with drinking water, etc.

One of your highest duties as a farmhand is to make sure that no livestock goes unwatered, even when things go wrong with the equipment.

(без степеней сравнения)Not having any surface water: no bodies of water and little to no rain.

an unwatered valley

an unwatered plain