(s)natural, raw, rude(used especially of commodities) being unprocessed or manufactured using only simple or minimal processes“natural yogurt”, “natural produce”, “raw wool”, “raw sugar”, “bales of rude cotton”
(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”