inferential

from WordNet (r) 3.0 (2006)

inferential
    adj 1: relating to or having the nature of illation or
           inference; "the illative faculty of the mind" [syn:
           {inferential}, {illative}]
    2: of reasoning; proceeding from general premisses to a
       necessary and specific conclusion
    3: resembling or dependent on or arrived at by inference; "an
       illative conclusion"; "inferential reasoning" [syn:
       {illative}, {inferential}]
    4: derived or capable of being derived by inference
    5: based on interpretation; not directly expressed

from The Collaborative International Dictionary of English v.0.48

Inferential \In`fer*en"tial\, a.
   Deduced or deducible by inference. "Inferential proofs." --J.
   S. Mill.
   [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

29 Moby Thesaurus words for "inferential":
      a fortiori, a posteriori, a priori, allusive, allusory, analytic,
      categorical, conditional, deductive, dialectic, discursive,
      enthymematic, epagogic, hypothetical, implicational, implicative,
      implicatory, indicative, inductive, insinuating, insinuative,
      insinuatory, ironic, maieutic, referential, soritical, suggestive,
      syllogistic, synthetic