Synonyms and related words :
aboriginal, ancestral, antepatriarchal, atavistic, autochthonous, basal, basic, central, crucial, elemental, elementary, embryonic, fundamental, generative, genetic, germinal, humanoid, in embryo, in ovo, original, patriarchal, preadamite, preglacial, pregnant, prehistoric, prehuman, primal, primary, prime, primeval, primitive, primogenial, primoprimitive, pristine, protogenic, protohistoric, protohuman, radical, rudimentary, seminal