Synonyms for Unenlightened (same or very similar meaning)
WordNet sense 1 (lacking information or instruction):
naive, uninstructedWordNet sense 2 (uneducated in general; lacking knowledge or sophistication):
nescient, unlearned, unletteredWordNet sense 3 (not having a good education):
uneducatedFrom the ODE community, based on WordNetadd/edit