stu·pid
ˈstü-pəd 
ˈstyü-
1
2
: dulled in feeling or sensation : torpid
still stupid from the sedative
3
: marked by or resulting from unreasoned thinking or acting : senseless
a stupid decision
4
a
: lacking interest or point
a stupid event
b
: vexatious, exasperating
the stupid car won't start
stupidly
adverb
stupidness
noun
: a stupid person
Synonyms
Adjective
- airheaded
- birdbrained
- bonehead
- boneheaded
- brain-dead
- brainless
- bubbleheaded
- chuckleheaded
- dense
- dim
- dim-witted
- doltish
- dopey
- dopy
- dorky [slang]
- dull
- dumb
- dunderheaded
- empty-headed
- fatuous
- gormless [chiefly British]
- half-witted
- knuckleheaded
- lamebrain
- lamebrained
- lunkheaded
- mindless
- oafish
- obtuse
- opaque
- pinheaded
- senseless
- simple
- slow
- slow-witted
- soft
- softheaded
- thick
- thickheaded
- thick-witted
- unintelligent
- unsmart
- vacuous
- weak-minded
- witless
Noun
- airhead
- birdbrain
- blockhead
- bonehead
- bubblehead
- chowderhead
- chucklehead
- clodpoll
- clodpole
- clot [British]
- cluck
- clunk
- cretin
- cuddy [British dialect]
- cuddie
- deadhead
- dim bulb [slang]
- dimwit
- dip
- dodo
- dolt
- donkey
- doofus [slang]
- dope
- dork [slang]
- dullard
- dum-dum
- dumbbell
- dumbhead
- dummkopf
- dummy
- dunce
- dunderhead
- fathead
- gander
- golem
- goof
- goon
- half-wit
- hammerhead
- hardhead
- idiot
- ignoramus
- imbecile
- jackass
- know-nothing
- knucklehead
- lamebrain
- loggerhead [chiefly dialect]
- loon
- lump
- lunkhead
- meathead
- mome [archaic]
- moron
- mug [chiefly British]
- mutt
- natural
- nimrod [slang]
- nincompoop
- ninny
- ninnyhammer
- nit [chiefly British]
- nitwit
- noddy
- noodle
- numskull
- numbskull
- oaf
- pinhead
- prat [British]
- ratbag [chiefly Australian]
- saphead
- schlub [slang]
- shlub
- schnook [slang]
- simpleton
- stock
- stupe
- thickhead
- turkey
- woodenhead
- yahoo
- yo-yo
Examples of stupid in a Sentence
Adjective
She angrily described her boss as a stupid old man.
He had a stupid expression on his face.
I'm not stupid enough to fall for that trick.
Why are you being so stupid?
It was stupid of me to try to hide this from you.
We were stupid to wait so long before we made a decision.
I did some pretty stupid things when I was young.
Two glasses of wine are enough to make me stupid.
I was stupid with fatigue.
Noun
a genius at math, but a total stupid when it came to his love life
Recent Examples on the Web
Darpan Munjal, Forbes, 21 Jan. 2025
So if someone is crazy slash stupid enough to do that.
—Outside Online, 16 Jan. 2025
Barry Levitt, Vulture, 19 Apr. 2024
The stupid!
—Bilge Ebiri, Vulture, 2 July 2024
See all Example Sentences for stupid 
Examples are automatically compiled from online sources to
show current usage.
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Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Adjective
There are no more stupid questions and an open, supportive, and curious culture evolves.
—Darpan Munjal, Forbes, 21 Jan. 2025
So if someone is crazy slash stupid enough to do that.
—Outside Online, 16 Jan. 2025
Noun
An underrated gem — not enough people have seen this top-tier season — Squirrels Trip has some fabulous vocals, very funny lyrics, a heavy dose of stupid, and an engaging story.
—Barry Levitt, Vulture, 19 Apr. 2024
The stupid!
—Bilge Ebiri, Vulture, 2 July 2024
See all Example Sentences for stupid
Dictionary Entries Near stupid
Cite this Entry
“Stupid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/stupid. Accessed 27 Jan. 2025.
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