vacancy
unintelligence
underbrained
unintelligent
stupid
lackluster
vacuous
mindless
vacant
stupidass
not the sharpest tool in the shed
not the sharpest tool in the box
not the sharpest knife in the drawer
nonintelligence
uncomprehending
mentally challenged
dense
gormless
simple
simpleton
clueless
weak
purblind
acognitive
incapacity
noncomprehension
half-brained
foresightlessness
shallow
unbright
nonintelligent
unskillfulness
insightlessness
inexpertness
dim
cerebrally challenged
intellectually challenged
nondiligence
darkness
halfwit
dull
inexpertise
slow
ungenius
unknowledgeable
inacquaintance
incomprehension
inadequacy
unenlightenment
unimaginativeness
unperceivingness
untutoredness
ignorance
half-witted
nonsavvy
naive
uneducation
blockish
backwardness
nonunderstanding
slowness
mental retardation
retardation
indocible
unvalorous
skillessness
subnormality
inclarity
nonrecognition
insensibility
uninterest
rude
mental block
insightless
dysrationalia
incognizance
unlettered
nescient
subnormal
ignorant
unfamiliarity
unlearned
light-witted
unproficiency
improficiency
nonunivocity
stun
inscient
nonproficiency
dyscompetence
dullness
fool
ill-bred
nonfamiliarity
underbrained
unintelligent
stupid
lackluster
vacuous
mindless
vacant
uncomprehending
mentally challenged
dense
gormless
clueless
weak
purblind
acognitive
half-brained
shallow
unbright
nonintelligent
dim
cerebrally challenged
intellectually challenged
dull
slow
unknowledgeable
half-witted
nonsavvy
naive
blockish
indocible
unvalorous
rude
insightless
unlettered
nescient
ignorant
unlearned
light-witted
inscient
ill-bred
vacancy
unintelligence
stupidass
not the sharpest tool in the shed
not the sharpest tool in the box
not the sharpest knife in the drawer
nonintelligence
simple
simpleton
incapacity
noncomprehension
foresightlessness
unskillfulness
insightlessness
inexpertness
nondiligence
darkness
halfwit
inexpertise
ungenius
inacquaintance
incomprehension
inadequacy
unenlightenment
unimaginativeness
unperceivingness
untutoredness
ignorance
uneducation
backwardness
nonunderstanding
slowness
mental retardation
retardation
skillessness
subnormality
inclarity
nonrecognition
insensibility
uninterest
mental block
dysrationalia
incognizance
subnormal
unfamiliarity
unproficiency
improficiency
nonunivocity
stun
nonproficiency
dyscompetence
dullness
fool
nonfamiliarity
English words for 'Lack of intelligence or understanding.'
As you may have noticed, above you will find words for "Lack of intelligence or understanding.". Hover the mouse over the word you'd like to know more about to view its definition. Click 
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