1 rough, uneven, broken, stony, rocky, irregular, bumpy, pitted, jagged, ragged:
The horses picked their way slowly across the rugged terrain.
2 tough, rough, severe, hard, harsh, difficult, arduous, Spartan, rigorous, onerous, stern, demanding, burdensome:
It is amazing how that small band of pioneers withstood the rugged life in the untamed West
3 hardy, durable, strong, sturdy, hale, robust, tough, vigorous, hard, rough-and-ready, stalwart; independent, individualistic, self-reliant, self-confident, self-sufficient, bold:
WANTED: Five rugged pioneering types to join an expedition to the source of the Amazon river
4 rude, uncouth, uncultured, uncivilized, unrefined, unpolished, crude, ungraceful, churlish:
I admit that Charlie's manners are a bit rugged, but he's one of the best men we have.