WordNet sense 1 (composed of or covered with particles resembling meal in texture or consistency):

farinaceous, grainy, granular, mealy, coarse-grained, granulose

WordNet sense 2 (of textures that are rough to the touch or substances consisting of relatively large particles):

coarse, harsh

WordNet sense 3 (willing to face danger):

game, gamey, gamy, mettlesome, spirited, spunky

WordNet sense 4 (possessing or displaying courage; able to face and deal with danger or fear without flinching):

brave, courageous