noetic
intellectualism
retard
idiot
cretin
noesis
imbecile
moron
half-wit
changeling
subnormal
subnormality
pan
nethermind
room-temperature IQ
not the sharpest tool in the box
vacancy
simple-mindedness
not the sharpest knife in the drawer
profundity
not the sharpest tool in the shed
theory of mind
brainhood
intellection
fathom
automaticity
brain
shallowness
sophomania
brainpower
ideolatry
enough sense to pound sand into a rathole
genia
mental defectiveness
abnormality
mental age
capacity
nonintelligence
fool
unintelligence
superconscious
retardation
slowness
depth
cerebricity
backwardness
mental retardation