antediluvian
/ˌantɪdɪˈluːvɪən/
noun
Meaning
One who lived prior to Noah's Flood.
adjective
Meaning
Ancient or antiquated.
Extremely dated.
"Those ideas are antediluvian."
Pertaining or belonging to the time period prior to a great or destructive flood or deluge.
Pertaining or belonging to the time prior to Noah's Flood.
Synonyms