adjective (a)

• not refined or processed(adj.all)

  Example:
  Unrefined ore.
  

  Synonym:
  crude, unprocessed
  Antonym:
  processed, refined
  

  source: wordnet30
• (used of persons and their behavior) not refined; uncouth(adj.all)

  Example:
  How can a refined girl be drawn to such an unrefined man?.
  

  Antonym:
  refined
  

  source: wordnet30