dunderhead
noun
dun·der·head ˈdən-dər-ˌhed 
: dunce, blockhead
dunderheaded
ˌdən-dər-ˈhe-dəd
adjective 
Synonyms
- 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
- 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
- stupid
- thickhead
- turkey
- woodenhead
- yahoo
- yo-yo
See all Synonyms & Antonyms 
Example Sentences
wondered how long it would take the dunderheads at the head office to screw things up
Recent Examples on the Web The story’s hero, Nat (no last name given) is a classic le Carré character, a skilled mid-level field operative in the secret British intelligence services who is underappreciated and sometimes abused by the dunderheads above him. 
Richard Lipez, Washington Post, 17 Oct. 2019
Richard Lipez, Washington Post, 17 Oct. 2019 Word History
Etymology
perhaps from Dutch donder thunder + English head; akin to Old High German thonar thunder — more at thunder entry 1
First Known Use
1630, in the meaning defined above
dunderheaded
adjective
as in stupid
not having or showing an ability to absorb ideas readily a comedy featuring the antics of dunderheaded criminals Synonyms & Similar Words
Relevance
- stupid
- dumb
- slow
- simple
- foolish
- idiotic
- boneheaded
- pinheaded
- doltish
- thick
- thickheaded
- ignorant
- obtuse
- dopey
- fatuous
- dull
- chuckleheaded
- dense
- knuckleheaded
- oafish
- airheaded
- lunkheaded
- softheaded
- bonehead
- vacuous
- lamebrain
- silly
- gormless
- witless
- unintelligent
- dim-witted
- brainless
- bubbleheaded
- mindless
- mad
- dorky
- senseless
- lamebrained
- half-witted
- thick-witted
- irrational
- unreasonable
- opaque
- insane
- moronic
- slow-witted
- empty-headed
- soft
- dim
- brain-dead
- crazy
- birdbrained
- dopy
- cretinous
- simpleminded
- weak-minded
- idiotical
- unsmart
- imbecile
- absurd
- lunatic
- feebleminded
- uninformed
- fool
- uneducated
- unthinking
- daft
- dippy
- looney
- harebrained
- imbecilic
- zany
- illiterate
- lowbrow
- daffy
- loony
- screwball
- untaught
- asinine
- unintellectual
- tomfool
- wacky
- preposterous
- unwise
- nutty
- illogical
- nonsensical
- fallacious
- kooky
- cockeyed
- cuckoo
- crackpot
- sappy
- half-baked
- dotty
- whacky
- invalid
- featherheaded
- boobish
- balmy
- kookie
Antonyms & Near Antonyms
- brilliant
- clever
- intelligent
- smart
- ingenious
- quick
- apt
- nimble
- brainy
- sharp
- astute
- wise
- bright
- savvy
- resourceful
- keen
- sagacious
- acute
- insightful
- erudite
- cerebral
- thinking
- perceptive
- fast
- intellectual
- knowledgeable
- skilled
- keen
- perspicacious
- sharp-witted
- learned
- shrewd
- quick-witted
- supersmart
- literate
- wily
- cunning
- sage
- hyperintelligent
- informed
- discerning
- knowing
- scholarly
- educated
- ultrasmart
- trained
- sensible
- crafty
- reasonable
- prudent
- highbrow
- sapient
- judicious
- sound
- sane
- logical
- rational
- well-read
- valid
- percipient
- foxy
- schooled