adj. 1.  Eager to learn more: curious investigators; a trapdoor that made me curious. 2.  Unduly inquisitive; prying: a curious neighbor always looking over the fence. 3.  Arousing interest because of novelty or strangeness: a curious fact. 4.  Archaic   a.  Accomplished with skill or ingenuity. b.  Extremely careful; scrupulous or fastidious. [Middle English, from Old French curios, from Latin cūriōsus, careful, inquisitive, from cūra, care; see  CURE.] curi·ous·ly adv. curi·ous·ness n.  | 
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