What is the meaning of rude?

adjective

• Socially incorrect in behavior.
  • usage: "resentment flared at such an unmannered intrusion"
  • synonyms: ill-mannered, bad-mannered, unmannered, unmannerly
• Of persons. ( lacking in refinement or grace)
  • synonyms: ill-bred, bounderish, lowbred, underbred, yokelish
• Lacking civility or good manners."want nothing from you but to get away from your uncivil tongue- Willa Cather
  • synonyms: uncivil
• Used especially of commodities. ( being unprocessed or manufactured using only simple or minimal processes)
  • usage: "natural yogurt"; "natural produce"; "raw wool"; "raw sugar"; "bales of rude cotton"
  • synonyms: natural, raw
• Belonging to an early stage of technical development; characterized by simplicity and (often) crudeness.
  • usage: "the crude weapons and rude agricultural implements of early man"; "primitive movies of the 1890s"; "primitive living conditions in the Appalachian mountains"
  • synonyms: crude, primitive