crude

adjective

• 1in a natural or raw state; not yet processed or refined:crude oil
• Statistics (of figures) not adjusted or corrected:the crude mortality rate
• (of an estimate or guess) likely to be only approximately accurate.

• 2constructed in a rudimentary or makeshift way:a relatively crude nuclear weapon
• (of an action) showing little finesse or subtlety and as a result unlikely to succeed:the measure was condemned by economists as crude and ill-conceived

• 3(of language, behavior, or a person) offensively coarse or rude, especially in relation to sexual matters:a crude joke

noun

• natural petroleum:the ship was carrying 80,000 tons of crude