rude

Socially incorrect in behavior.

(used especially of commodities) being unprocessed or manufactured using only simple or minimal processes.

“bales of rude cotton”

Lacking civility or good manners.

Belonging to an early stage of technical development; characterized by simplicity and (often) crudeness.

“the crude weapons and rude agricultural implements of early man”

(of persons) lacking in refinement or grace.