- primeval
- adjprimitive, primal, prehistoric, pre-adamic, Noachian, Noachic, Noachical, antediluvian, eolithic, Paleolithic, Mesolithic, Neolithic; primary, prime, pristine, early, earliest, initiative, initial, premier, first; primordial, autochthonal, autochthonous, aboriginal, indigenous, endemic, endemical, native, vernacular; archaic, fossil, fossilized, fossillike, antiquated, antique, ancient, aged, oldest, old; original, embryonic, embryonal, genetic, primigenial, etiological.
A Note on the Style of the synonym finder. 2014.