uneducated
Gothic
Philistine
amateurish
artless
barbarous
benighted
bookless
deceived
disembarrass
disembroil
disencumber
disentangle
empty-headed
functionally illiterate
grammarless
heathen
hoodwinked
ill-educated
illiterate
ingenuous
know-nothing
led astray
lowbrow
misinformed
misinstructed
mistaught
naive
nonintellectual
pagan
rude
semiskilled
simple
unaccomplished
unaffected
unartificial
unbooked
unbookish
unbooklearned
unbriefed
unbusinesslike
uncoached
uncultivated
uncultured
unedified
unendowed
unerudite
unfinished
ungifted
unguided
childlike
credulous
inelegant
simple-minded
uncivilised
uncivilized
undisciplined
unguarded
uninformed
unlearned
unlettered
unpolished
unpractised
unskilled
unsophisticated
untamed
untaught
untrained
wayward