Gothic, Philistine, barbarous, bookless, functionally illiterate, grammarless, heathen, hoodwinked, ill-educated, illiterate, led astray, lowbrow, misinformed, misinstructed, mistaught, nonintellectual, pagan, rude, unbooked, unbookish, unbooklearned, unbriefed, uncultivated, uncultured, unedified, uneducated, unerudite, unguided, uninstructed, unintellectual, unlearned, unlettered, unliterary, unread, unrefined, unscholarly, unschooled, unstudious, untaught, untutored