not refined; not purified, as substances

unrefined metal.

coarse or crude; lacking in refinement of taste, feeling, manners, language, etc.

adjective

native , raw , unprocessed , barbarian , barbaric , boorish , churlish , crass , crude , gross , ill-bred , indelicate , philistine , rough , rude , tasteless , uncivilized , uncouth , uncultivated , uncultured , unpolished , vulgar , brutish , coarse , earthy , inelegant , primitive , troglodytic , unsophisticated