sturdy and strong in constitution or construction; enduring; "a rugged trapper who spent months in the winderness"; "those that survive are stalwart rugged men"; "with a house full of boys you have to have rugged furniture";
very difficult; severely testing stamina or resolution; "a rugged competitive examination"; "the rugged conditions of frontier life"; "the competition was tough"; "it''s a tough life"; "it was a tough job";
rocky and steep;
topographically very uneven; "broken terrain"; "rugged ground";
