antediluvian
- adjective (adj)
Meaning: out-of-date prehistoric
Synonyms:
age-old
ancient
antiquated
antique
archaic
hoary
obsolete
old
old-fashioned
passé
primeval
primitive
primordial
timeworn
venerable
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.