backward
cretinous
delayed
dim-witted
feeble-minded
half-witted
idiotic
imbecile
imbecilic
moronic
simple
simple-minded
slow-witted
arrested
babbling
back
behind
behindhand
belated
blithering
blocked
bridled
burbling
checked
constrained
controlled
crackbrained
cracked
crazy
cretinistic
curbed
delayed-action
detained
dithering
driveling
drooling
guarded
half-baked
held up
hung up
impeded
in a bind
in abeyance
in check
in leading strings
in remission
inhibited
jammed
late
latish
maundering
mentally defective
mentally deficient
mentally handicapped
mentally retarded
mongoloid
people
bombarded
carded
discarded
disregarded
larded
regarded
unguarded