an·te·di·lu·vi·an
adjective
- of or belonging to the time before the biblical Flood
- ridiculously old-fashioned
“gigantic bones of antediluvian animals”
“they maintain antediluvian sex-role stereotypes”
“her antediluvian attitudes“
“they maintain antediluvian sex-role stereotypes”
“her antediluvian attitudes“
Synonyms: outdated, outmoded, antiquated, passé