(s)crude, earthy, gross, vulgarconspicuously and tastelessly indecent“coarse language”, “a crude joke”, “crude behavior”, “an earthy sense of humor”, “a revoltingly gross expletive”, “a vulgar gesture”, “full of language so vulgar it should have been edited”
(s)crude, primitive, rudebelonging to an early stage of technical development; characterized by simplicity and (often) crudeness“the crude weapons and rude agricultural implements of early man”, “primitive movies of the 1890s”, “primitive living conditions in the Appalachian mountains”
(s)blunt, crude, starkdevoid of any qualifications or disguise or adornment“the blunt truth”, “the crude facts”, “facing the stark reality of the deadline”