ratiocinative
(a.)推理的,推論的,好理論的
Ra·ti·oc·i·na·tive a. 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. --Coleridge.
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ratiocinative
adj : based on exact thinking; "one's ratiocinative powers"