uneducated
Gothic
Philistine
amateurish
barbarous
benighted
bookless
deceived
empty-headed
functionally illiterate
grammarless
heathen
hoodwinked
ignorant
ill-educated
illiterate
know-nothing
led astray
lowbrow
misinformed
misinstructed
mistaught
nonintellectual
pagan
rude
semiskilled
unaccomplished
unbooked
unbookish
unbooklearned
unbriefed
unbusinesslike
uncoached
uncultivated
uncultured
unedified
unendowed
unerudite
unfinished
ungifted
unguided
uninitiated
uninstructed
unintellectual
unlearned
unlettered
unliterary
unpolished
unprepared
unprimed
artless
ill-mannered
lowborn
uncivilized
uncomforted
undisciplined
uninformed
unpractised
unquestioning
unrefined
unskilled
unsophisticated
unthinking
untrained
untried
untutored