postdiluvian adj 1: existing or occurring after Noah's flood n 1: anything living after Noah's flood
Postdiluvial \Post`di*lu"vi*al\, Postdiluvian \Post`di*lu"vi*an\, a. [Pref. post- + diluvial, diluvian.] Being or happening after the flood in Noah's days. [1913 Webster]
Postdiluvian \Post`di*lu"vi*an\, n. One who lived after the flood. [1913 Webster]