There are several synonyms that can be used for the term "most mildewed." Some of the popular alternatives for this expression include "dampened," "moldy," "foul-smelling," "decayed," "rotten," "stale," "putrid," "corroded," and "fusty." Depending on the context, these synonyms can be used to describe a variety of objects that have been subjected to moisture and become moldy or musty. For example, a mildewed book can be referred to as a moldy book, a dampened book, a putrid book, or a fusty book. Similarly, a mildewed carpet can be referred to as a moldy carpet, a stale carpet, or a decaying carpet.