Synonyms for Not Smart: 120+ Synonyms for Not Intelligent


What are synonyms for not smart? What’s a word for not that smart? What is a fancy word for dumb? What do you call someone with low IQ? What is the opposite intelligent? This post provides interesting synonyms for not smart, as it is quite important to know these synonyms so you will not have to use the same “not intelligent” or “not smart” word over and over again.

There are many fascinating and brilliant synonyms for not smart you can use in your writing and speaking. For example, popular synonyms for not smart are:

  • dense
  • foolish
  • stupid
  • ignorant
  • lowbrow
  • brainless
  • imbecilic
  • dump
  • silly
  • shortsighted
  • boneheaded
  • unintellectual
  • slow
  • thick-headed
  • illiterate

This post compiles a huge list of synonyms for not intelligent that will surely help you expand your English Vocabulary. Sentence examples of synonyms for not smart will also be listed.

Not Smart Meaning

Meaning of not smart: Someone who shows or has a lack of thought or a lack of ability to understand things. For example:

  • I was not smart when I believed what James told me.
  • This is not a smart answer.

Synonyms for Not Intelligent:

Some popular synonyms for not smart are listed in the chart below:

imbecilicbrainlessempty-headedfoolishdumb
meaninglessidioticinanehalf-witteddoltish
simpledeficientdensedullsenseless
futilementally deficientmindlessslowthick
gulliblepointlesssimplemindedmentally handicappedwitless
unthinkingthick-headeddummymoroniclaughable
half-wittedunintelligentill-advisedludicrousirrelevant
losernaivesenselesstrivialshortsighted
half-bakedbrainlessimbecilicinanerash
doltishdopeyindiscreetinsensatemeaningless
moronicmindlessdeficientnonsensicalout to lunch
dazedpuerilepointlessobtuseunthinking
sluggishstupefieddimstoliduninformed
Another word for not smart

Synonyms for Not Smart

This is a large list of 70+ different words to use instead of “not smart”

  1. chuckleheaded
  2. dim-witted
  3. airheaded
  4. dopey (also dopy)
  5. mindless
  6. dunderheaded
  7. unsmart
  8. brain-dead
  9. opaque
  10. illiterate
  11. empty-headed
  12. fatuous
  13. knuckleheaded
  14. boobish
  15. lamebrain (or lamebrained)
  16. stupid
  17. birdbrained
  18. bonehead
  19. boneheaded
  20. bubbleheaded
  21. lunkheaded
  22. oafish
  23. obtuse
  24. pinheaded
  25. senseless
  26. slow-witted
  27. ignorant
  28. lowbrow
  29. uneducated
  30. soft
  31. softheaded
  32. thick
  33. thick-witted
  34. vacuous
  35. weak-minded
  36. cretinous
  37. feebleminded
  38. simpleminded
  39. dippy
  40. dotty
  41. feather-headed
  42. fool
  43. half-baked
  44. harebrained
  45. insane
  46. unintellectual
  47. untaught
  48. unthinking
  49. absurd
  50. asinine
  51. balmy
  52. cockeyed
  53. silly
  54. tomfool
  55. unwise
  56. wacky (also whacky)
  57. zany
  58. fallacious
  59. illogical
  60. invalid
  61. irrational
  62. unreasonable
  63. crackpot
  64. cuckoo
  65. daffy
  66. daft
  67. kooky (also kookie)
  68. crazy
  69. loony (also looney)
  70. lunatic
  71. mad
  72. nonsensical
  73. nutty
  74. preposterous
  75. sappy
  76. screwballa foolish

Synonyms for Not Smart with Example Sentences:

foolishEmmy made a foolish mistake by believing all that he told her.
stupidMichelle made me look stupid in front of the whole family
thickheadedThe teacher thinks the student is thickheaded, but actually the poor can’t hear properly.
futileThe whole situation is getting futile.
idiotI felt such an idiot when I lost my keys.
foolLike a fool, Mary told her sisters everything
imbecilic All of their remarks were imbecilic.
dumbThe criminal acted dumb when the police questioned him.
half-wittedShe realized she was dealing with a half-witted person.
opaqueHis idea was an opaque idea in the first place
dorky Tommy is such a dorky guy.

More Interesting Example Sentences with Synonyms for Not Smart: Quotes & Sayings

You know your fear is both false and illogical, but you fear it anyway. Anne Gracie

Any man can make mistakes, but only an idiot persists in his error. Marcus Tullius Cicero

If people never did silly things nothing intelligent would ever get done. Ludwig Wittgenstein

There is nothing I fear more than waking up without a program that will help me bring a little happiness to those with no resources, those who are poor, illiterate, and ridden with terminal disease. Nelson Mandela

We are all born ignorant, but one must work hard to remain stupid. Unknown

The educated differ from the uneducated as much as the living from the dead. Aristotle

When dealing with the insane, the best method is to pretend to be sane. Hermann Hesse

To be interested in food but not in food production is clearly absurd. Wendell Berry

Everything important always begins from something trivial. Donald Hall

Common Antonyms for Not Smart

The following list covers some of the famous antonyms of the word ” not smart “:

  • brilliant
  • canny
  • astute
  • bright
  • crafty
  • nimble
  • quick
  • resourceful
  • sharp
  • shrewd
  • on the ball
  • pert
  • quick-witted
  • sassy
  • astute
  • wise
  • bright
  • acute
  • alert
  • resourceful
  • smart
  • well-informed
  • able
  • keen
  • knowing
  • quick
  • quick-witted
  • ready
  • responsible
  • agile
  • bold
  • brainy
  • slick
  • ingenious
  • wise
  • good
  • adept
  • alert
  • brisk
  • genius
  • keen
  • rational
  • alive
  • sage
  • all there
  • brilliant
  • creative
  • imaginative
  • inventive
  • deep
  • original
  • perceptive
  • clever
  • sharp
  • thinking
  • together
  • witty
  • knowing
  • pointed
  • ready
  • skull
  • knowledgeable
  • whiz
  • clever
  • effective
  • eggheaded
  • fresh
  • impertinent
  • long-haired
  • nervy
  • apt
  • calculating
  • capable
  • comprehending
  • reasonable
  • discerning
  • enlightened
  • exceptional
  • highbrow
  • ingenious
  • instructed
  • understanding
  • penetrating
  • perspicacious
  • profound
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