Meaning of antediluvian

Definition of antediluvian

(adj) of or relating to the period before the biblical flood; "antediluvian man"
so extremely old as seeming to belong to an earlier period; "a ramshackle antediluvian tenement"; "antediluvian ideas"; "archaic laws"
(noun) any of the early patriarchs who lived prior to the Noachian deluge
a very old person

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