informal
Gothic
Philistine
barbarous
bookless
colloquial
common
conversational
deceived
everyday
familiar
functionally illiterate
grammarless
heathen
hoodwinked
ill-educated
illiterate
led astray
lowbrow
misinformed
misinstructed
mistaught
nonintellectual
nonstandard
pagan
rude
spoken
substandard
unbooked
unbookish
unbooklearned
unbriefed
uncultivated
uncultured
unedified
uneducated
unerudite
unguided
uninstructed
unintellectual
unlearned
unlettered
unread
unrefined
unscholarly
unschooled
unstudied
unstudious
untaught
untutored
bombshell
hand grenade
lower-income
most-hyped
new-built
out-manoeuvred
out-of-touch
over-burdened
own-brand
pre-occupied
pro-soviet
sailor-like
self-acquired
self-referential
stagey
uncharismatic
underexposed
unflickering
ungenteel
unsalable
up-to-the-minute