1. Of or relating to the period before the biblical flood
   "antediluvian man"
   - antediluvial 
2. So extremely old as seeming to belong to an earlier period
   "a ramshackle antediluvian tenement"; "antediluvian ideas"
   - antiquated, archaic

1. Any of the early patriarchs who lived prior to the Noachian deluge
   - antediluvian patriarch 
2. A very old person
   - ancient

Derived forms: antediluvians

See also: diluvial, old

Type of: golden ager, old person, oldster [N. Amer], patriarch, senior citizen

Encyclopedia: Antediluvian

• room temperature
• roomer
• roomette
• roomful
• roomie
• roomily
• roominess
• rooming house
• roommate
• rooms
• roomy
• Roosevelt
• Rooseveltian
• roost
• rooster
• root
• root beer
• root beer float
• root canal
• root cap
• root celery
• root cellar
• root climber
• root crop
• root for