simple-mindedness
simple-minded
feeblemindedness
imbecility
brain
simple
dim-witted
denseness
mentally deficient person
weak
able-minded
feeble-mindedness
sloppy-mindedness
uncollectedness
mindless
brilliance
impersonhood
mindlessness
brainpower
light-witted
naïveté
incapability
few sandwiches short of a picnic
incapableness
mindwandering
inability
unskillfulness
simple-mindedly
diaphanousness
psychodegradation
unpalatableness
learning ability
mental capacity
unpalatability
depression
dehumanise
wit
ineffective
noncognizance
quick-witted
mentality
naive
weak-minded
dehumanize
nonconscious
dysrationalia
depth
incogitativity
whifty
insusceptibility
confusedness
disarray
ponderation
inconsideration
lackadaisicalness
mental confusion
confusion
muddiness
bejeebers
insensitive
assurance
able-mindedness
nonratability
not the sharpest tool in the shed
not wrapped too tight
slow-wittedness
not the sharpest knife in the drawer
incogitative
noncognition
dumbness
not the sharpest tool in the box
delusiveness
vacant
acognitive
slow
vacuous
absentness
wits' end
unsentient
softheaded
hypomentalizing
subintellectual
anoia
aptness
omissiveness
uningenuousness
averseness
inhibition
dimly
palely
genius
pallidly
darkness
fatuity