"Unsanded" refers to a surface that has not been smoothed or finished through sanding. This term is commonly used in woodworking and construction, where materials like wood or drywall may be left in their natural state without the refinement that sanding provides. Unsanded surfaces can have a rough texture and may require additional treatment for aesthetic or functional purposes. In the context of materials, unsanded grout is a specific type of grout used in tile installations. It is thicker and more suitable for narrow joints, while sanded grout is used for wider joints. Choosing between unsanded and sanded options depends on the project requirements and desired finish.