crude (adj.)

late 14c., "in a raw or unprepared state" (of coarse bread or untanned hide), from Latin crudus "rough; not cooked, raw, bloody," from PIE *krue-do-, from PIE root *kreue- "raw flesh." Meaning "lacking grace, socially unrefined" is attested by 1640s. Related: Crudely; crudeness. Crude oil, which is in its natural state and unrefined, is from 1865.

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Definitions of crude
crude (adj.)
devoid of any qualifications or disguise or adornment;
the crude facts
Synonyms: blunt / stark
crude (adj.)
not carefully or expertly made;
managed to make a crude splint
a crude cabin of logs with bark still on them
Synonyms: rough
crude (adj.)
conspicuously and tastelessly indecent;
a crude joke
crude behavior
Synonyms: earthy / gross / vulgar
crude (adj.)
belonging to an early stage of technical development; characterized by simplicity and (often) crudeness;
the crude weapons and rude agricultural implements of early man
Synonyms: primitive / rude
crude (adj.)
not processed or subjected to analysis;
only the crude vital statistics
Synonyms: raw
crude (adj.)
not refined or processed;
crude oil
Synonyms: unrefined / unprocessed
crude (n.)
a dark oil consisting mainly of hydrocarbons;
Synonyms: petroleum / crude oil / rock oil / fossil oil / oil