1. petroleum, crude oil, crude, rock oil, fossil oil, oil, oil, fossil fuel

usage: a dark oil consisting mainly of hydrocarbons


1. crude, rough, unskilled (vs. skilled)

usage: not carefully or expertly made; "managed to make a crude splint"; "a crude cabin of logs with bark still on them"; "rough carpentry"

2. crude, earthy, gross, vulgar, indecent (vs. decent)

usage: conspicuously and tastelessly indecent; "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"

3. unrefined (vs. refined), unprocessed, crude

usage: not refined or processed; "unrefined ore"; "crude oil"

4. crude, primitive, rude, early (vs. late)

usage: belonging to an early stage of technical development; characterized by simplicity and (often) crudeness; "the crude weapons and rude agricultural implements of early man"; "primitive movies of the 1890s"; "primitive living conditions in the Appalachian mountains"

5. blunt, crude(prenominal), stark(prenominal), unconditional (vs. conditional), unconditioned

usage: devoid of any qualifications or disguise or adornment; "the blunt truth"; "the crude facts"; "facing the stark reality of the deadline"

6. crude, raw, unanalyzed (vs. analyzed)

usage: not processed or subjected to analysis; "raw data"; "the raw cost of production"; "only the crude vital statistics"

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See also: crude (Dictionary)