What is the meaning of crude?

noun

• A dark oil consisting mainly of hydrocarbons.
  • synonyms: petroleum, crude oil, rock oil, fossil oil, oil

adjective

• Not carefully or expertly made.
  • usage: "managed to make a crude splint"; "a crude cabin of logs with bark still on them"; "rough carpentry"
  • synonyms: rough
• Conspicuously and tastelessly indecent.
  • usage: "coarse language"; "a crude joke"; "crude behavior"; "an earthy sense of humor"; "a revoltingly gross expletive"; "a vulgar gesture"; "full of language so vulgar it should have been edited"
  • synonyms: earthy, gross, vulgar
• Not refined or processed.
  • usage: "unrefined ore"; "crude oil"
  • synonyms: unrefined, unprocessed
• 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: primitive, rude
• Devoid of any qualifications or disguise or adornment.
  • usage: "the blunt truth"; "the crude facts"; "facing the stark reality of the deadline"
  • synonyms: blunt, stark
• Not processed or subjected to analysis.
  • usage: "raw data"; "the raw cost of production"; "only the crude vital statistics"
  • synonyms: raw