1. Not having a fine texture
   "coarse-grained wood";
   - large-grained
    
2. Composed of or covered with particles resembling meal in texture or consistency
   "the photographs were coarse-grained and indistinct";
   - farinaceous, grainy, granular, granulose, gritty, mealy

See also: coarse, harsh

Encyclopedia: Coarse-grained