WordReference Random House Learner's Dictionary of American English © 2015
crude /krud/USA pronunciation   adj., crud•er, crud•est, n. 

  1. in a raw or unrefined state:crude sugar; crude oil.
  2. showing a lack of polish or skill;
    undeveloped:a crude shelter; a crude drawing.
  3. lacking culture, refinement, etc.;
    vulgar:crude behavior.

n. [uncountable]
  1. Chemistry crude oil.
crude•ness,n. [uncountable]

WordReference Random House Unabridged Dictionary of American English © 2015
crude  (kro̅o̅d), 
adj., crud•er, crud•est, n. 

  1. in a raw or unprepared state;
    unrefined or natural:crude sugar.
  2. lacking in intellectual subtlety, perceptivity, etc.; rudimentary;
  3. lacking finish, polish, or completeness:a crude summary.
  4. lacking culture, refinement, tact, etc.:crude behavior.
  5. undisguised; blunt:a crude answer.
  6. [Obs.]unripe;
    not mature.

  1. ChemistrySee crude oil. 
  • Latin crūdus uncooked, raw, bleeding, rough, akin to cruor blood from a wound; see raw
  • Middle English 1350–1400
crudely, adv. 
crudeness, n. 
1 . unfinished, coarse. See raw.  4 . uncouth, rough, rude, coarse, clumsy. 1, 4 . refined.

Collins Concise English Dictionary © HarperCollins Publishers::

crude /kruːd/ adj
  1. lacking taste, tact, or refinement; vulgar: a crude joke
  2. in a natural or unrefined state
  3. lacking care, knowledge, or skill: a crude sketch
  4. (prenominal) stark; blunt
  1. short for crude oil
Etymology: 14th Century: from Latin crūdus bloody, raw; related to Latin cruor blood

ˈcrudely adv ˈcrudity, ˈcrudeness n

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