1rough or harsh in texture:a coarse woollen cloth consisting of large grains or particles:coarse sand (of grains or particles) large: under the microscope they are seen to contain coarse grains (of a person’s features) not elegantly formed or proportioned: his coarse, ugly features contorted with rage (of food or drink) of inferior quality: the wine is harsh, tannic, and coarse
2(of a person or their speech) rude or vulgar: a man of coarse speech indecent language and coarse jests
3British relating to the sport of angling for coarse fish:coarse anglers