/
ˈrʌgɪd/
adj.
  - having a rocky and uneven surface.
- having or requiring toughness and determination. ▸(of a man) having attractively masculine, rough-hewn features. 
Derivative
- ruggedly adv.
- ruggedness n.
Etymology
ME (in the sense ‘shaggy’): prob. of Scand. origin; cf. rug.