Most unswept is a phrase used to describe an area or surface that has not been adequately cleaned or swept. The antonyms for this phrase include tidy, clean, swept, neat, groomed, and well-kept. These words imply that the area or surface has been well-maintained and is free of dirt, dust, and debris. Tidy and neat suggest that the area is organized and free of clutter, while clean and groomed suggest that it has been thoroughly cleaned and cared for. Well-kept implies ongoing maintenance and attention to detail. By using these antonyms, one can describe a space that is clean, attractive, and inviting.