The Collaborative International Dictionary of English v.0.48:

Deductive \De*duct"ive\, a. [Cf. L. deductivus derivative.]
   Of or pertaining to deduction; capable of being deduced from
   premises; deducible.
   [1913 Webster]

         All knowledge of causes is deductive.    --Glanvill.
   [1913 Webster]

         Notions and ideas . . . used in a deductive process.
                                                  --Whewell.
   [1913 Webster]

WordNet (r) 3.0 (2006):

deductive
    adj 1: relating to logical deduction; "deductive reasoning"
    2: involving inferences from general principles [ant:
       inductive]

Moby Thesaurus II by Grady Ward, 1.0:

34 Moby Thesaurus words for "deductive":
   a fortiori, a posteriori, a priori, ablative, academic, analytic,
   categorical, conditional, conjectural, deducible, derivable,
   dialectic, discursive, dogmatic, enthymematic, epagogic, erosive,
   hypothetical, illative, inductive, inferential, maieutic,
   purported, putative, ratiocinative, reasoned, reductive, soritical,
   speculative, subtractive, supposed, syllogistic, synthetic,
   theoretical