adjective (of persons) lacking in refinement or grace.
— synonyms: ill-bred, bounderish, lowbred, underbred, yokelish
adjective lacking civility or good manners.
— synonyms: uncivil
adjective (used especially of commodities) being unprocessed or manufactured using only simple or minimal processes.
— synonyms: natural, raw(a), rude(a)
adjective belonging to an early stage of technical development.
— synonyms: crude, primitive