unlettered (adj.)
- barbarous
- benighted
- deceived
- empty-headed
- heathen
- illiterate
- lowbrow
- nonintellectual
- pagan
- rude
- unbooked
- uncultivated
- uncultured
- uneducated
- unguided
- uninstructed
- unlearned
- unliterary
- unread
- unrefined
- unscholarly
- unschooled
- unstudious
- untaught
- untutored
That unlettered small-knowing soul.