Synonyms of antediluvian

1 Syllable
passé, old
2 Syllables
hoary, early, oldie, has-been, old-school, time-worn, cast-off, aged, mustier, musty, old-hat, olden, archaic, ancient, feudal, castoff
3 Syllables
antique, outmoded, medieval, disused, timeworn, primordial, primeval, demode, age-old, dinosaur
4 Syllables
prehistoric, pre-historic, out-of-fashion, old-fashioned, antiquated, primitive, stick-in-the-mud, proleptical, venerable, obsolete
5 Syllables
anachronistic, antediluvians