a. Of or relating to the period before the Deluge in Noah's time; hence, antiquated; as, an antediluvian vehicle. -- n. One who lived before the Deluge. [ 1913 Webster ]
a. [ Cf. F. diluvien. ] Of or pertaining to a deluge, esp. to the Noachian deluge; diluvial; as, of diluvian origin. Buckland. [ 1913 Webster ]
{ } a. [ Pref. post- + diluvial, diluvian. ] Being or happening after the flood in Noah's days. [ 1913 Webster ]
n. One who lived after the flood. [ 1913 Webster ]