untutored, unenlightened, untaught, unlettered, unlearned, unschooled, unstudied, undereducated, ignorant, illiterate, more...

educated, literate, learned, erudite

ill-educated, unread, uninformed, unenlightened, untrained, unskilled, unqualified, more...

less educated,   not educated,   being ignorant,   ignorant people,   ignorant; ignorance,   blatantly ignorant,   ignorant oblivious,   never taught,   hasn't learned