Bumpy/ˈbʌmpi/ Definition 1 of 2Pro Tip 1/3Physical Terrain Describes physical surfaces, like roads or paths, that are not level or flat. We hiked across a bumpy landscape with lots of hills. Pro Tip 2/3Vehicle Movement Used to express how travel felt when the vehicle moved unevenly. The airplane's bumpy descent made the passengers feel uneasy. Pro Tip 3/3Describe Textures Can be used metaphorically to describe textures that you can physically feel. The bumpy fabric of the sweater was uncomfortable against my skin.