Rumply refers to something that is wrinkled, crumpled or uneven. Its antonyms are terms that describe smoothness, neatness, and organization. These include terms such as smooth, tidy, sleek, neat, and orderliness. Smooth describes something that is evenly flat or without bumps, lumps or ridges. Neat refers to something that is orderly, clean and tidy. Sleek describes something that is smooth, glossy, and shiny. Orderliness refers to something that is organized, systematic and well arranged. Using these antonyms of rumply, we can effectively communicate a sense of neatness, tidiness, cleanness, and organization in our descriptions.