[1] : The Collaborative International Dictionary of English v.0.48

brainy \brain"y\ br=an"y^, a.
   1. having an active or vigorous mind. colloq.
      1913 webster

   2. highly intelligent.
      pjc braise

[2] : WordNet (r) 2.0

brainy
     adj : having or marked by unusual and impressive intelligence;
           "some men dislike brainy women"; "a brilliant mind"; "a
           brilliant solution to the problem" syn: brilliant, smart
           as a whip
     also: brainiest, brainier
see also:
brilliant smart as a whip brainiest brainier 

[3] : Moby Thesaurus II by Grady Ward, 1.0

24 moby thesaurus words for "brainy":
   adroit, alert, apt, bright, brilliant, clever, dexterous, gifted,
   keen, keen-witted, knowing, nimble, nimble-witted, no dumbbell,
   not born yesterday, quick, quick-thinking, quick-witted,
   scintillating, sharp, sharp-witted, smart, steel-trap, talented

Brainy >> B Words
Brainy, definition of term: Brainy
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