One who has, or tends to have, original ideas.(noun)
One who aims to discover how the writers of a document intended it to be interpreted, and to interpret it in that way.(noun)
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Use "originalist" in a sentence
"But unless a future originalist is heard on the issue, the “living Constitutionalists” will be deciding cases about tasty desserts while allowing Congress to enact every sort of abridgement of “speech”."
"How come conservatives invariably -- I'm not saying always -- reach "originalist" - based decisions that are continually consistent with their conservative beliefs?"
"Bork, the so-called originalist, is more than willing to repeal the Ninth Amendment by judicial fiat."