numskull
subintellectual
nonlearner
fool
mentally deficient person
unteachable
psilosopher
handicapped person
layman
coward
noncomprehender
throwback
stun
spazzer
spack
homebird
nonintellectual
spacky
reprobate
technotard
problem child
inadequate
nonachiever
lost soul
rube
whore
yahoo
yokel
bumpkin
chawbacon
hick
sinner
hayseed
orphan
unsociable
misomusist
poetling
submoron
inability
refusant
baby
loser
hopeless
slow on the uptake
slacker
maladroit
layperson
retard
antiadaptationist
neglecter
innumerate
anti
misosopher
bottler
dog in the manger
deficient
apathete
mishire
nonconsenter
fledgling
pervasive refusal syndrome
psychopath
ballbag
weakling
academically disadvantaged
subnormal
lame duck
basement dweller
brainlet
gadgie
maladjustment
reluctant dragon
Peter Pan
weakener
schlemiel
philistine
lackbrain
antipsychologist
anti-intellectual
indocile
bookish
caveman
idiot savant
gosling
Muggle
weak-minded
amential
baulker
noncompliant
know-nothing
balker
cheeser
subexpert
nonadherent
misopedist
pedophobe
birdbrain
sleaze
nonphilosopher
nonacademic