OUTLINE Copy link • OUTLINEs. forma rudis et impolita (PROP.); extrema lineamenta, -orum; extremae lineae, plur., (PROP. and figuratively); forma (PROP. and figuratively). To draw an outline of anything, primas lineas alicujus rei ducere; primis lineis designare aliquid; adumbrare aliquid (PROP. and figuratively).