Synonyms of unevolved

1 Syllable
first, old
2 Syllables
early, earliest, primal, basic, archaic
3 Syllables
pristine, underlying, substratal, primordial, primeval, essential, primary
4 Syllables
underived, fundamental, primitive
5 Syllables
elementary, unactualized, undeveloped
6 Syllables
underivative