There are many synonyms for the words "become overly dry." Some of these synonyms include desiccate, dehydrate, parch, wither, shrivel, and wilt. These words all refer to a condition where something has lost its moisture and become dry. Whether you're describing a desert landscape or a piece of meat that has been cooked too long, these words can help you express just how dry something has become. Using synonyms is a great way to add variety and interest to your writing, especially if you find yourself using the same words over and over again.