More mildewed is a term that refers to something that is covered with a fungus or mold, making it appear dirty, unclean, or unsanitary. The synonyms for more mildewed include musty, decayed, rotten, stale, putrid, sour, dank, fetid, and moldy. These terms describe the unpleasant smell and appearance of something that has been left uncleaned or unattended for a long time. Using these synonyms can help to add depth and variety to your writing, making it more descriptive and engaging for your readers. Whether you're describing an old, neglected basement or a decaying piece of furniture, these synonyms can help you to paint a vivid picture in the minds of your audience.