Synonyms for Crude (same or very similar meaning)
WordNet sense 1 (a dark oil consisting mainly of hydrocarbons):
petroleum, crude oil, fossil oil, rock oil
WordNet sense 2 (not carefully or expertly made):
rough
WordNet sense 3 (not having or showing or requiring special skill or proficiency):
unskilled
WordNet sense 4 (not refined or processed):
unprocessed, unrefined
WordNet sense 5 (belonging to an early stage of technical development; characterized by simplicity and (often) crudeness):
primitive, rude
WordNet sense 6 (being or occurring at an early stage of development):
early
WordNet sense 7 (conspicuously and tastelessly indecent):
coarse, earthy, gross, vulgar
WordNet sense 8 (devoid of any qualifications or disguise or adornment):
blunt, stark
WordNet sense 9 (not conditional):
unconditional
WordNet sense 10 (not processed or subjected to analysis):
raw
WordNet sense 11 (not analyzed or broken down for detailed examination):
unanalyzed
From the ODE community, based on WordNet
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