"Most velutinous" is a term used to describe something that is covered in a soft, smooth, and luxurious layer. However, there are several antonyms that can be used to describe something that is not velutinous. Opposite words for velutinous can include words such as rough, scratchy, coarse, uneven, and bumpy. These words represent a stark contrast to the soft and smooth nature of velutinous objects. While velutinous may be used to describe textiles or fabrics, its antonyms can be used to describe surfaces, textures, or materials that are not silky, glossy, or velvety.