Synonyms of underived

1 Syllable
first
2 Syllables
prime, early, starting, pioneer, first-hand, grass-roots, grassroots, infant
3 Syllables
commencing, pristine, embryonic, authentic, substratal, beginning, primordial, initial, primeval, genuine, opening, primary
4 Syllables
archetypal, foundational, unevolved, fundamental, inceptive, autochthonous, rudimental, substrative, primitive, original, prototypal, originals
5 Syllables
elementary, introductory, meat-and-potatoes, axiological, aboriginal, rudimentary
6 Syllables
underivative