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mentally deficient synonyms

Trying to find another word for mentally deficient in English? No problem. Our thesaurus contains synonyms of mentally deficient in 27 different contexts. We have listed all the similar and related words for mentally deficient alphabetically.

  • anencephalic
  • anencephalous
  • dumb
  • foolish
  • imbecile
  • mindless
  • senseless
  • silly
  • stupid
  • thoughtless
  • witless
  • amiss
  • bad
  • damaged
  • defective
  • exiguous
  • faulty
  • flawed
  • found wanting
  • impaired
  • incomplete
  • inferior
  • infrequent
  • injured
  • insufficient
  • lacking
  • marred
  • meager
  • not cut out for
  • not enough
  • close
  • close-knit
  • compact
  • condensed
  • crammed
  • crowded
  • heaped
  • heavy
  • impenetrable
  • jam-packed
  • jammed
  • massed
  • opaque
  • packed
  • packed like sardines
  • piled
  • solid
  • substantial
  • thickset
  • blockheaded
  • blockish
  • boneheaded
  • brainless
  • cloddish
  • dense
  • dimwitted
  • dumb
  • empty-headed
  • half-witted
  • loggerheaded
  • oafish
  • obtuse
  • simple
  • simpleminded
  • thickheaded
  • unintelligent
  • at a loss for words
  • inarticulate
  • incoherent
  • mousy
  • mum
  • mute
  • quiet
  • silent
  • soundless
  • speechless
  • tongue-tied
  • uncommunicative
  • voiceless
  • wordless
  • brainless
  • dizzy
  • featherbrained
  • frivolous
  • giddy
  • harebrained
  • ignorant
  • illiterate
  • inane
  • know-nothing
  • silly
  • skittish
  • stupid
  • uneducated
  • unschooled
  • untaught
  • vacant
  • vacuous
  • absurd
  • asinine
  • brainless
  • cockamamy
  • crazy
  • daffy
  • daft
  • dippy
  • doltish
  • dotty
  • fantastic
  • fatuous
  • feebleminded
  • half-baked
  • half-witted
  • harebrained
  • ill-advised
  • ill-considered
  • imbecilic
  • asinine
  • defective
  • dull
  • dull-witted
  • feebleminded
  • foolish
  • imbecile
  • senseless
  • silly
  • witless
  • asinine
  • batty
  • birdbrained
  • crazy
  • daffy
  • daft
  • dull
  • dumb
  • fatuous
  • foolhardy
  • foolish
  • harebrained
  • imbecile
  • imbecilic
  • inane
  • insane
  • lunatic
  • moronic
  • senseless
  • absurd
  • asinine
  • brainless
  • cockamamie
  • crazy
  • daffy
  • daft
  • dippy
  • doltish
  • dotty
  • fantastic
  • fatuous
  • feebleminded
  • half-baked
  • half-witted
  • harebrained
  • idiotic
  • ill-advised
  • ill-considered
  • absurd
  • asinine
  • daft
  • empty
  • fatuous
  • flat
  • foolish
  • frivolous
  • futile
  • harebrained
  • idiotic
  • illogical
  • imbecilic
  • innocuous
  • insipid
  • jejune
  • laughable
  • meaningless
  • mindless
  • absurd
  • aimless
  • blank
  • doesn't cut it
  • double-talk
  • doublespeak
  • empty
  • feckless
  • fustian
  • futile
  • good-for-nothing
  • hollow
  • hot air
  • inane
  • inconsequential
  • insignificant
  • insubstantial
  • nonsensical
  • nothing
  • brainless
  • deficient
  • dense
  • doltish
  • dumb
  • empty-headed
  • foolish
  • half-witted
  • idiotic
  • imbecilic
  • inane
  • meaningless
  • mentally deficient
  • mindless
  • moronic
  • not intelligent
  • pointless
  • senseless
  • simple
  • asinine
  • brainless
  • dense
  • dimwitted
  • doltish
  • dopey
  • dumb
  • foolish
  • half-baked
  • idiotic
  • ill-advised
  • imbecilic
  • inane
  • irresponsible
  • ludicrous
  • mindless
  • nonsensical
  • pointless
  • senseless
  • brainless
  • deficient
  • dense
  • doltish
  • dumb
  • empty-headed
  • foolish
  • half-witted
  • idiotic
  • imbecilic
  • inane
  • meaningless
  • mentally deficient
  • mentally handicapped
  • mindless
  • moronic
  • pointless
  • senseless
  • simple
  • absurd
  • aimless
  • around in circles
  • fruitless
  • futile
  • going nowhere
  • impotent
  • in vicious circle
  • inane
  • inconsequential
  • ineffective
  • ineffectual
  • insignificant
  • irrelevant
  • meaningless
  • needle in haystack
  • nongermane
  • nonsensical
  • not pertinent
  • absurd
  • asinine
  • batty
  • crazy
  • daft
  • double talk
  • doublespeak
  • fatuous
  • flaky
  • foolish
  • idiotic
  • illogical
  • imbecilic
  • inane
  • incongruous
  • inconsistent
  • insignificant
  • irrational
  • ludicrous
  • child's play
  • cinch
  • clean
  • easy as pie
  • effortless
  • elementary
  • facile
  • incomplex
  • intelligible
  • light
  • lucid
  • manageable
  • mild
  • no problem
  • no sweat
  • not difficult
  • picnic
  • piece of cake
  • plain
  • brainless
  • childlike
  • clueless
  • crude
  • dumb
  • feeble-minded
  • idiotic
  • ignorant
  • moronic
  • naive
  • slow
  • stupid
  • uncomplicated
  • unschooled
  • unstudied
  • untutored
  • unworldly
  • apathetic
  • crawling
  • creeping
  • dawdling
  • delaying
  • deliberate
  • dilatory
  • disinclined
  • dreamy
  • drowsy
  • easy
  • gradual
  • heavy
  • idle
  • imperceptible
  • inactive
  • indolent
  • inert
  • lackadaisical
  • brainless
  • dazed
  • deficient
  • dense
  • dim
  • doltish
  • dopey
  • dull
  • dumb
  • dummy
  • foolish
  • futile
  • gullible
  • half-baked
  • half-witted
  • idiotic
  • ill-advised
  • imbecilic
  • inane
  • blundering
  • brutish
  • feckless
  • foolish
  • heedless
  • impulsive
  • inadvertent
  • inconsiderate
  • indelicate
  • insensitive
  • instinctive
  • mechanical
  • napping
  • negligent
  • oblivious
  • outrageous
  • rash
  • rude
  • selfish
  • absurd
  • asinine
  • birdbrained
  • brainless
  • cockamamy
  • crazy
  • daffy
  • doltish
  • dotty
  • dumb
  • feebleminded
  • half-baked
  • half-witted
  • harebrained
  • idiotic
  • ill-advised
  • irrational
  • jerky
  • kooky
  • absurd
  • asinine
  • birdbrained
  • brainless
  • cockamamy
  • crazy
  • daffy
  • doltish
  • dotty
  • dumb
  • feebleminded
  • half-baked
  • half-witted
  • harebrained
  • idiotic
  • ill-advised
  • irrational
  • jerky
  • kooky
  • absurd
  • asinine
  • birdbrained
  • brainless
  • cockamamy
  • crazy
  • daffy
  • doltish
  • dotty
  • dumb
  • feebleminded
  • half-baked
  • half-witted
  • harebrained
  • idiotic
  • ill-advised
  • irrational
  • jerky
  • kooky
  • absurd
  • asinine
  • birdbrained
  • brainless
  • cockamamy
  • crazy
  • daffy
  • doltish
  • dotty
  • dumb
  • feebleminded
  • half-baked
  • half-witted
  • harebrained
  • idiotic
  • ill-advised
  • irrational
  • jerky
  • kooky
  • absurd
  • asinine
  • birdbrained
  • brainless
  • cockamamy
  • crazy
  • daffy
  • doltish
  • dotty
  • dumb
  • feebleminded
  • half-baked
  • half-witted
  • harebrained
  • idiotic
  • ill-advised
  • irrational
  • jerky
  • kooky

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