rug·ged / ˈrəgid/ • adj. (of ground or terrain) having a broken, rocky, and uneven surface: a rugged coastline. ∎ (of a machine or other manufactured object) strongly made and capable of withstanding rough handling: the binoculars are compact, lightweight, and rugged. ∎ having or requiring toughness and determination: a week of rugged, demanding adventure at an outdoor training center. ∎ (of a man's face or looks) having attractively strong, rough-hewn features: he was known for his rugged good looks.DERIVATIVES: rug·ged·ly adv.rug·ged·ness n.