(of materials) in a natural state; not refined or manufactured

vulgar, unpolished in manner

impolite (the usual word)

rude, impolite

(of a person) socially shy and clumsy

tactless, unsophisticated

not polite

having bad manners

(of behaviour, talk etc) obscene or offensive

obscene, vulgar; offensive

not (yet) civilized; (of behaviour) bad, thoughtless

wild, uncultured

(of a person, behaviour) rough, awkward, uncultured

clumsy, uncultivated