antediluvian
6.“a branch of one of your antediluvian families” (William Congreve).
7.One of the antediluvian progenitors of the human race, from Adam to Noah.
8.This antediluvian monetary system has now been replaced by the up-to-date monetary system of Japan.
9.The New Atlantis, interest in Atlantis then languished, until, some 2,200 years after Plato, the 1882 publication of Atlantis: the Antediluvian World by Minnesota politician and sometime crankish writer Ignatius Donnelly.
