Standard Synonyms
Idiotic
Imbecilic
Moronic
Dense
Dull
Fatuous
Inane
Asinine
Boneheaded
Dim
Dim-witted
Doltish
Dopey
Foolish
Half-baked
Harebrained
Lamebrain
Lunatic
Come-lately
Crackpot
Crazy
Cuckoo
Nuts
Slang Synonyms
Dumb
Idiotic
Moronic
Imbecilic
Retarded
Academic Synonyms
Ignorant
Uneducated
Unintelligent
Old English Synonyms
Dumb
Aimless
Dull
Fatuous
Mindless
Oafish
Senseless
Simple
Slow
Thick
Vacuous
Idiotic
Imbecile.
Regional Synonyms
Dumb
Unintelligent
Idiotic
Imbecilic
Moronic
Failing
Industry-specific Synonyms
Ignorant
Uneducated
Inexperienced
Uniformed
Unknowledgeable.
Antonyms
Intelligent
Brilliant
Savvy
Sophisticated
Sharp
Meaning
not clever or intelligent
Definition
Without intelligence; lacking in reason or judgment.
Example Sentences
1. I’m so stupid, I can’t even spell my own name.
2. I’m too stupid to understand what you’re saying.
3. I made a stupid mistake and now I’m paying for it.
4. I feel so stupid!
5. That was a really stupid thing to do.