Synonyms of 'basal'

aboriginal, ab ovo, basic, basilar, beginning, bottom, bottommost, central, constituent, constitutive, crucial, elemental, elementary, embryonic, essential, fundamental, generative, genetic, germinal, gut, lowermost, material, nethermost, original, pregnant, primal, primary, primeval, primitive, primordial, pristine, radical, rudimentary, seminal, substantial, substantive, undermost