A rough road
A rough road is a coarse course.
I realize that there are many non-native English speakers in this forum and I give them slack, but to keep them from getting confused and to keep my head from exploding I have to vent at native English speakers with bad habits.
I've seen the habitual misuse of "coarse" and "course" several times recently. (*argh!!!*)
The opening sentence above says it all. "Coarse" means rough. "Course" means a path of travel.
And if someone says "it's all good" I'm going to try to jump through the wires and strangle them. 8-o