Ratiocinative /(răsh`ĭ*ŏs"ĭ*nā̇*tĭv)/

Ra·ti·oc·i·na·tive

Ratiocinative

a.
  1. Characterized by, or addicted to, ratiocination; consisting in the comparison of propositions or facts, and the deduction of inferences from the comparison; argumentative; as, a ratiocinative process.
    The ratiocinative meditativeness of his character.