Definition of 'antediluvian'
- any of the early patriarchs who lived prior to the Noachian deluge
Synonyms: antediluvian patriarch
- a very old person
- 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"
Synonyms: antiquated archaic