1.Definition: (of persons) lacking in refinement or grace

Related Adjective(s):bounderish, lowbred, underbred, yokelish

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

"Bales of rude cotton"

Related Adjective(s):natural, raw

3.Definition: belonging to an early stage of technical development; characterized by simplicity and (often) crudeness

"The crude weapons and rude agricultural implements of early man"

Related Adjective(s):crude, primitive

4.Definition: lacking civility or good manners

Related Adjective(s):uncivil

5.Definition: socially incorrect in behavior

Related Adjective(s):unmannered, unmannerly