beautify — If you beautify something, you make it look more beautiful.
rise — to get up from a lying, sitting, or kneeling posture; assume an upright position: She rose and walked over to greet me. With great effort he rose to his knees.
smooth — free from projections or unevenness of surface; not rough: smooth wood; a smooth road.
adj incurvate
convex — Convex is used to describe something that curves outwards in the middle.
distended — increased, as in size, volume, etc.; expanded; dilated: the distended nostrils of the terrified horse.
straight — without a bend, angle, or curve; not curved; direct: a straight path.
