rugged

adj. 1 (esp. Of ground) rough, uneven. 2 (of features) wrinkled, furrowed, irregular. 3 a unpolished; lacking refinement (rugged grandeur). B harsh in sound. 4 robust, hardy.  ruggedly adv. Ruggedness n. [probably scandinavian]

n. Full of asperities on the surface; broken into sharp or irregular points, or otherwise uneven; not smooth; rough; as, a rugged mountain; a rugged road.