Having a rough or uneven texture. The coarse fabric of the burlap sack was uncomfortable against her skin.
Lacking refinement or sophistication; vulgar or crude. His coarse jokes were not appreciated at the formal dinner party.
Consisting of large particles or grains. The coarse sand was perfect for the construction project.
General or approximate in nature; lacking fine detail or precision. The engineer began with a coarse model of the bridge before refining the design.