Meaning : Any of the early patriarchs who lived prior to the Noachian deluge.
Synonyms : antediluvian patriarch
Meaning : A very old person.
Synonyms : ancient
Meaning : Of or relating to the period before the biblical flood.
Example :
Antediluvian man.
Synonyms : antediluvial
Meaning : So extremely old as seeming to belong to an earlier period.
Example :
A ramshackle antediluvian tenement.
Antediluvian ideas.
Archaic laws.
Synonyms : antiquated, archaic