Unpadded means without any cushioning or soft material, which can be uncomfortable or hard. There are several synonyms for the word unpadded, including un-cushioned, hard, firm, rough, stark, and unwaxed. These words can be used to describe a range of items, including furniture, clothing, and packaging materials. For example, an unpadded chair could be described as hard or un-cushioned, while a package without any padding might be labeled as rough or stark. The key is to choose the right synonym based on the context of the sentence and the message that you want to convey.