The phrase "in velvet" is often used to describe something that is soft, smooth, and silky, like the fur of an animal. Antonyms, or words that have opposite meanings, for "in velvet" may include rough, scratchy, harsh or coarse. They may also include words like dull, drab, or lifeless that suggest a lack of shine or luster. Alternatively, antonyms for "in velvet" could also be used to describe things that are hard, firm, or rigid, such as metal or concrete. In short, there are many ways to express the opposite of "in velvet," depending on the context and the intended meaning.