Primeval

(a.) Belonging to the first ages; primitive; as, the primeval innocence of man.

Thesaurus Entries

abecedarian, aboriginal, ancestral, ancient, antenatal, antepatriarchal, atavistic, autochthonous, basal, basic, beginning, budding, central, creative, crucial, early, elemental, elementary, embryonic, erstwhile, fetal, fore, formative, former, foundational, fundamental, generative, genetic, germinal, gestatory, humanoid, immemorial, in embryo, in its infancy, in ovo, in the bud, inaugural, inceptive, inchoate, inchoative, incipient, incunabular, infant, infantile, initial, initiative, initiatory, introductory, inventive, late, nascent, natal, old, olden, once, onetime, original, parturient, past, patriarchal, postnatal, preadamite, preglacial, pregnant, prehistoric, prehuman, prenatal, previous, primal, primary, prime, primitive, primogenial, primoprimitive, primordial, prior, pristine, procreative, protogenic, protohistoric, protohuman, quondam, radical, recent, rudimental, rudimentary, seminal, sometime, then, ur