uninformed
Gothic
Philistine
barbarous
benighted
bookless
deceived
empty-headed
functionally illiterate
grammarless
heathen
hoodwinked
ill-educated
illiterate
incognizant
know-nothing
led astray
lowbrow
misinformed
misinstructed
mistaught
nonintellectual
oblivious
pagan
rude
unacquainted
unaware
unbooked
unbookish
unbooklearned
unbriefed
uncultivated
uncultured
unedified
uneducated
unerudite
unfamiliar
unguided
unintellectual
unknowing
unlearned
unlettered
unliterary
unread
unrefined
unscholarly
unschooled
unstudious
untaught
untutored
befogged
buckshot
disingenuous
ill-guided
incurious
inexperienced
resourceless
under-educated
unenlightened
unexcited
unfitted
uninterested
uninvolved
unpractised
unprepared
unreflective
untrustworthy