"crude" in the noun sense
1. petroleum, crude oil, crude, rock oil, fossil oil, oil
a dark oil consisting mainly of hydrocarbons
"crude" in the adjective sense
1. crude, rough
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
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, unprocessed, crude
not refined or processed
"unrefined ore"
"crude oil"
4. crude, primitive, rude
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, stark
devoid of any qualifications or disguise or adornment
"the blunt truth"
"the crude facts"
"facing the stark reality of the deadline"
6. crude, raw
not processed or subjected to analysis
"raw data"
"the raw cost of production"
"only the crude vital statistics"
Source: WordNet® (An amazing lexical database of English)
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