of or relating to the period before the biblical flood; antediluvian man

[ Syn: antediluvial ]

any of the early patriarchs who lived prior to the Noachian deluge

[ Syn: antediluvian patriarch ]

a very old person

[ Syn: ancient ]

so extremely old as seeming to belong to an earlier period; a ramshackle antediluvian tenement; antediluvian ideas; archaic laws

[ Syn: antiquated , archaic ]