The Collaborative International Dictionary of English v.0.48:

Intelligently \In*tel"li*gent*ly\, adv.
   In an intelligent manner; with intelligence.
   [1913 Webster]

WordNet (r) 3.0 (2006):

intelligently
    adv 1: in an intelligent manner; "she acted intelligently in
           this difficult situation" [ant: unintelligently]

Moby Thesaurus II by Grady Ward, 1.0:

27 Moby Thesaurus words for "intelligently":
   artfully, astutely, circumspectly, cleverly, consciously,
   considerately, cunningly, discerningly, discreetly, eruditely,
   judiciously, knowingly, learnedly, providently, prudently,
   rationally, reasonably, sagaciously, sensibly, shrewdly, smartly,
   studiously, thoughtfully, understandingly, wisely,
   with forethought, wittingly