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adj. Belonging to an earlier time; too old to be used; primitive; out of date.

Misdated; especially, dated too late.

"Our laws are based on the constitution; and yes, "the right to bear arms" might be a bit parachronistic; but you can't have it both ways."

up-to-date    prochronistic   

archaic    outdated    old-fashioned    antiquated    outmoded