knuckleheaded
The word “knuckleheaded” has 4 syllables: knuck-le-head-ed
It's pronounced as /ˈnʌkəlˌhɛdɪd/
What is synonym and antonym for knuckleheaded?
In the thesaurus, “knuckleheaded” has 100 synonyms and 61 antonyms.
Here are synonyms and antonyms for knuckleheaded along with examples of usage in sentences.
Synonyms for knuckleheaded
- absurd
- airheaded
- asinine
- balmy
- birdbrained
- bonehead
- boneheaded
- boobish
- brain-dead
- brainless
- bubbleheaded
- chuckleheaded
- cockeyed
- crackpot
- crazy
- cretinous
- cuckoo
- daffy
- daft
- dense
- dim
- dim-witted
- dippy
- doltish
- dopey
- dopy
- dorky
- dotty
- dull
- dumb
- dunderheaded
- empty-headed
- fallacious
- fatuous
- featherheaded
- feebleminded
- fool
- foolish
- gormless
- half-baked
- half-witted
- harebrained
- idiotic
- idiotical
- ignorant
- illiterate
- illogical
- imbecile
- imbecilic
- insane
- invalid
- irrational
- kookie
- kooky
- lamebrain
- lamebrained
- looney
- loony
- lowbrow
- lunkheaded
- mad
- mindless
- moronic
- nonsensical
- nutty
- oafish
- obtuse
- opaque
- pinheaded
- preposterous
- sappy
- screwball
- senseless
- silly
- simple
- simpleminded
- slow
- slow-witted
- soft
- softheaded
- stupid
- thick
- thick-witted
- thickheaded
- tomfool
- uneducated
- uninformed
- unintellectual
- unintelligent
- unreasonable
- unsmart
- untaught
- unthinking
- unwise
- vacuous
- wacky
- weak-minded
- whacky
- witless
- zany
Antonyms for knuckleheaded
- acute
- apt
- astute
- brainy
- bright
- brilliant
- cerebral
- clever
- crafty
- cunning
- discerning
- educated
- erudite
- fast
- foxy
- highbrow
- hyperintelligent
- informed
- ingenious
- insightful
- intellectual
- intelligent
- judicious
- keen
- knowing
- knowledgeable
- learned
- literate
- logical
- nimble
- perceptive
- percipient
- perspicacious
- prudent
- quick
- quick-witted
- rational
- reasonable
- resourceful
- sagacious
- sage
- sane
- sapient
- savvy
- scholarly
- schooled
- sensible
- sharp
- sharp-witted
- shrewd
- skilled
- smart
- sound
- supersmart
- thinking
- trained
- ultrasmart
- valid
- well-read
- wily
- wise
Example Sentences
- His knuckleheaded remark nearly ruined the whole meeting.
- They made a knuckleheaded decision to ignore the warning signs.
- I regret my knuckleheaded attempt to fix the car myself.
- Her knuckleheaded plan backfired just as everyone predicted.
- That was a truly knuckleheaded move on his part.
On this page you'll find 161 synonyms, antonyms, or another words to knuckleheaded, such as: absurd, acute, airheaded, apt, asinine, astute, balmy.
Make sure to choose synonyms and antonyms that are appropriate for the context of the sentence.
Related Words
daffy
- aberrant
- absurd
- airheaded
- amok
- amuck
- ape
- around the bend
- asinine
- ballistic
- balmy
- bananas
- barmy
- bats
- batty
- bedlam
- berserk
- birdbrained
- bonkers
- boobish
- brain-dead
- brainless
- brainsick
- bubbleheaded
- buffoonish
- bughouse
- certifiable
- chowderheaded
- chuckleheaded
- clownish
- clueless
- cockeyed
- crackbrained
- cracked
- crackers
- crackpot
- cranky
- crazed
- crazy
- cuckoo
- daft
- delirious
- delusional
- delusionary
- demented
- dense
- depressed
- deranged
- dim
- dim-witted
- dippy
- disordered
- distracted
- distraught
- disturbed
- doltish
- dopey
- dopy
- dorky
- dotty
- dull
- dumb
- dunderheaded
- eccentric
- empty-headed
- fallacious
- farcical
- fatuous
- featherheaded
- feebleminded
- fey
- fixated
- fool
- foolish
- frantic
- frenzied
- fruity
- gaga
- goofy loony
- gormless
- half-baked
- half-witted
- harebrained
- haywire
- hysteric
- hysterical
- idiotic
- idiotical
- ill-advised
- illogical
- imbecile
- imbecilic
- inept
- insane
- invalid
- irrational
- jerky
- knuckleheaded
- kookie
- kooky
- lamebrain
- lamebrained
- laughable
- loco
- looney
- looney tunes
- loony
- loony tunes
- loopy
- ludicrous
- lunatic
- lunkheaded
- mad
- maniac
- maniacal
- mental
- meshuga
- meshugah
- meshuggah
- meshugge
- mindless
- monomaniac
- monomaniacal
- moonstruck
- moronic
- neurotic
- non compos mentis
- nonrational
- nonsensical
- notional
- nuclear
- nuts
- nutty
- oafish
- obsessed
- obsessive-compulsive
- obtuse
- odd
- oddball
- off
- opaque
- out to lunch
- paranoiac
- paranoic
- paranoid
- paranoidal
- pinheaded
- pixilated
- pixillated
- potty
- preposterous
- psycho
- psychotic
- queer
- raving
- ridiculous
- sappy
- scatty
- schizoid
- schizophrenic
- screwball
- screwy
- senseless
- silly
- simple
- simpleminded
- slow
- slow-witted
- sociopathic
- soft
- softheaded
- strange
- stupid
- surd
- teched
- tetched
- thick
- thickheaded
- thoughtless
- tomfool
- touched
- unbalanced
- unconsidered
- unhinged
- unintelligent
- unreasonable
- unreasoned
- unreasoning
- unsound
- unwise
- vacuous
- wacko
- wacky
- weak
- weak-minded
- whacko
- whacky
- wigged-out
- witless
- wud
- zany
daft
- aberrant
- absurd
- airheaded
- amok
- amuck
- ape
- around the bend
- asinine
- ballistic
- balmy
- bananas
- barmy
- bats
- batty
- bedlam
- berserk
- birdbrained
- bonkers
- boobish
- brain-dead
- brainless
- brainsick
- bubbleheaded
- buffoonish
- bughouse
- certifiable
- chowderheaded
- chuckleheaded
- clownish
- clueless
- cockeyed
- crackbrained
- cracked
- crackers
- crackpot
- cranky
- crazed
- crazy
- cuckoo
- daffy
- delirious
- delusional
- delusionary
- demented
- dense
- depressed
- deranged
- dim
- dim-witted
- dippy
- disordered
- distracted
- distraught
- disturbed
- doltish
- dopey
- dopy
- dorky
- dotty
- dull
- dumb
- dunderheaded
- eccentric
- empty-headed
- fallacious
- farcical
- fatuous
- featherheaded
- feebleminded
- fey
- fixated
- flaky
- fool
- foolish
- frantic
- frenzied
- fried
- fruity
- gaga
- giddy
- gormless
- half-baked
- half-witted
- harebrained
- haywire
- hysteric
- hysterical
- idiotic
- idiotical
- ill-advised
- illogical
- imbecile
- imbecilic
- in the ozone
- inane
- inept
- insane
- invalid
- irrational
- jerky
- knuckleheaded
- kookie
- kooky
- lamebrain
- lamebrained
- laughable
- loco
- looney
- looney tunes
- loony
- loony tunes
- loopy
- ludicrous
- lunatic
- lunkheaded
- mad
- maniac
- maniacal
- mental
- meshuga
- meshugah
- meshuggah
- meshugge
- mindless
- monomaniac
- monomaniacal
- moonstruck
- moronic
- neurotic
- non compos mentis
- nonrational
- nonsensical
- notional
- nuclear
- nuts
- nutty
- oafish
- obsessed
- obsessive-compulsive
- obtuse
- odd
- oddball
- off
- off the wall
- opaque
- out to lunch
- paranoiac
- paranoic
- paranoid
- paranoidal
- pinheaded
- pixilated
- pixillated
- potty
- preposterous
- psycho
- psychotic
- queer
- raving
- ridiculous
- sappy
- scatty
- schizoid
- schizophrenic
- screwball
- screwy
- senseless
- silly
- simple
- simpleminded
- slow
- slow-witted
- sociopathic
- soft
- softheaded
- strange
- stupid
- surd
- teched
- tetched
- thick
- thickheaded
- thoughtless
- tomfool
- touched
- unbalanced
- unconsidered
- unhinged
- unintelligent
- unreasonable
- unreasoned
- unreasoning
- unsound
- unwise
- vacuous
- wacko
- wacky
- weak
- weak-minded
- whacko
- whacky
- wigged-out
- witless
- wud
- zany
mad
- aberrant
- absurd
- acrid
- acrimonious
- acrimoniousness
- acrimony
- affront
- aggravate
- aggravated
- aggravation
- agitated
- air rage
- airheaded
- amok
- amuck
- anger
- angered
- angriness
- angry
- animosity
- annoy
- annoyance
- annoyed
- antagonism
- antagonistic
- antagonize
- antipathetic
- antipathy
- antisocial
- ape
- apoplectic
- ardent
- argumentative
- around the bend
- asinine
- avid
- ballistic
- balmy
- bananas
- barmy
- bats
- batty
- bearish
- bedlam
- belligerence
- belligerent
- bent out of shape
- berserk
- bile
- bilious
- biliousness
- birdbrained
- birse
- bitter
- bitterness
- blowup
- blue in the face
- boiling
- bonkers
- boobish
- brain-dead
- brainless
- brainsick
- bristling
- bristly
- bubbleheaded
- buffoonish
- bughouse
- burning
- cantankerous
- certifiable
- chafe
- cheesed off
- choler
- choleric
- chowderheaded
- chuckleheaded
- churlish
- clownish
- clueless
- cockeyed
- cold
- concentrated
- contempt
- contentious
- contentiousness
- contrariness
- contrary
- cool
- crabby
- crackbrained
- cracked
- crackers
- crackpot
- crankiness
- cranky
- crazed
- crazy
- cross
- cuckoo
- daffy
- daft
- dander
- delirious
- delirium
- delusional
- delusionary
- demented
- dense
- depressed
- deranged
- devoted
- dim
- dim-witted
- dippy
- disagreeable
- disapproving
- disordered
- disputatious
- disputatiousness
- distant
- distracted
- distraught
- disturbed
- doltish
- dopey
- dopy
- dorky
- dotty
- dudgeon
- dull
- dumb
- dunderheaded
- dyspeptic
- eccentric
- embitter
- embittered
- embitterment
- empoisonment
- empty-headed
- enamoured
- enflame
- enflamed
- enmity
- enrage
- enraged
- enthused
- envenom
- envy
- exasperate
- exasperated
- exasperation
- excessive
- exorbitant
- extravagant
- extreme
- fallacious
- fanatical
- farcical
- fatuous
- featherheaded
- feebleminded
- ferocious
- feverish
- fey
- fierce
- fit to be tied
- fixated
- flare
- flare-up
- foaming
- fond
- fool
- foolhardy
- foolish
- frantic
- frenetic
- frenzied
- fretful
- frigid
- fruity
- fuming
- furious
- furor
- fury
- fussy
- gaga
- get
- going crook
- gormless
- grouchy
- grudge
- grumpy
- half-baked
- half-witted
- harebrained
- haywire
- heat
- high-pressured
- hooked
- hopping
- hopping mad
- horn-mad
- hostility
- hot
- hot under the collar
- hot-headedness
- huff
- huffy
- hysteric
- hysterical
- icy
- idiotic
- idiotical
- ill-advised
- ill-humored
- ill-tempered
- illogical
- imbecile
- imbecilic
- immoderate
- impassioned
- impractical
- imprudent
- in a fume
- in a huff
- in a pet
- incense
- incensed
- indignant
- indignation
- inept
- infatuated
- inflame
- inflamed
- inflammable
- infuriate
- infuriated
- inimical
- inordinate
- insane
- intense
- intensive
- invalid
- irascibility
- irascible
- irascibleness
- irate
- irateness
- ire
- ireful
- irrational
- irritability
- irritable
- irritate
- irritated
- irritation
- jaundice
- jealousy
- jerky
- keen
- knuckleheaded
- kookie
- kooky
- lamebrain
- lamebrained
- laughable
- lavish
- livid
- lividity
- lividness
- loco
- looney
- looney tunes
- loony
- loony tunes
- loopy
- ludicrous
- lunatic
- lunkheaded
- madden
- madness
- malevolence
- malevolent
- malice
- maniac
- maniacal
- mental
- meshuga
- meshugah
- meshuggah
- meshugge
- miff
- mindless
- monomaniac
- monomaniacal
- mood
- moonstruck
- moronic
- nettle
- neurotic
- non compos mentis
- nonrational
- nonsensical
- notional
- nuclear
- nuts
- nutty
- oafish
- obsessed
- obsessive-compulsive
- obtuse
- odd
- oddball
- of unsound mind
- off
- offend
- opaque
- orneriness
- ornery
- out to lunch
- outburst
- outrage
- outraged
- overmuch
- overweening
- paranoiac
- paranoic
- paranoid
- paranoidal
- passion
- passionate
- peeve
- peevish
- perturbed
- pet
- petulant
- pinheaded
- pique
- piqued
- pixilated
- pixillated
- potty
- preposterous
- provoke
- psycho
- psychotic
- pugnacious
- pugnaciousness
- pugnacity
- put out
- quarrelsome
- quarrelsomeness
- queer
- querulous
- querulousness
- quick-tempered
- rabid
- rage
- raging
- rancor
- rancorous
- rankle
- rankled
- ranting
- raving
- reckless
- resentful
- resentment
- ridiculous
- rile
- riled
- riley
- rise
- risky
- road rage
- roil
- roiled
- rub the wrong way
- ruffle
- sappy
- scatty
- schizoid
- schizophrenic
- screwball
- screwy
- seeing red
- seething
- senseless
- shirty
- silly
- simple
- simpleminded
- sizzling
- slow
- slow burn
- slow-witted
- smoldering
- smouldering
- snappish
- sociopathic
- soft
- softheaded
- sore
- sorehead
- soreheaded
- spite
- spiteful
- spleen
- steam up
- steamed up
- steaming
- stormy
- strange
- stupid
- sulky
- surd
- teched
- teed off
- temper
- testy
- tetched
- thick
- thickheaded
- thoughtless
- tick off
- ticked
- tomfool
- touched
- touchy
- unbalanced
- unconscionable
- unconsidered
- undue
- unfriendly
- unhinged
- unintelligent
- unpleasant
- unreasonable
- unreasoned
- unreasoning
- unsafe
- unsound
- unstable
- unwise
- vacuous
- vehement
- vengeful
- vengefulness
- venom
- very upset
- vex
- vexation
- vindictive
- vindictiveness
- violent
- virulence
- virulent
- vitriol
- vitriolic
- wacko
- wacky
- warmth
- weak
- weak-minded
- whacko
- whacky
- wigged-out
- wild
- witless
- worked up
- wrath
- wrathful
- wrathfulness
- wroth
- wud
- zany
- zealous
oafish
- absurd
- airheaded
- all thumbs
- asinine
- balmy
- birdbrained
- blundering
- blunderous
- bonehead
- boneheaded
- boobish
- brain-dead
- brainless
- bubbleheaded
- bumbling
- bungling
- butterfingered
- chuckleheaded
- cockeyed
- crackpot
- crazy
- cretinous
- cuckoo
- daffy
- daft
- dense
- dim
- dim-witted
- dippy
- doltish
- dopey
- dopy
- dorky
- dotty
- dull
- dumb
- dunderheaded
- empty-headed
- fallacious
- fatuous
- featherheaded
- feebleminded
- fool
- foolish
- gawkish
- gawky
- gormless
- graceless
- half-baked
- half-witted
- harebrained
- heavy-handed
- idiotic
- idiotical
- ignorant
- illiterate
- illogical
- imbecile
- imbecilic
- inelegant
- inept
- insane
- invalid
- irrational
- klutzy
- knuckleheaded
- kookie
- kooky
- lamebrain
- lamebrained
- looney
- loony
- lowbrow
- lubberly
- lumbering
- lumpish
- lunatic
- lunkheaded
- mad
- mindless
- moronic
- nonsensical
- nutty
- obtuse
- opaque
- pinheaded
- preposterous
- sappy
- screwball
- senseless
- silly
- simple
- simpleminded
- slow
- slow-witted
- soft
- softheaded
- stumbling
- stupid
- thick
- thick-witted
- thickheaded
- tomfool
- uncoordinated
- undexterous
- uneducated
- ungainly
- uninformed
- unintellectual
- unintelligent
- unreasonable
- unsmart
- untaught
- unthinking
- unwise
- vacuous
- wacky
- weak-minded
- whacky
- witless
- zany
vacuous
- abandoned
- absurd
- airheaded
- asinine
- available
- balmy
- bare
- barren
- birdbrained
- blank
- bonehead
- boneheaded
- boobish
- brain-dead
- brainless
- bubbleheaded
- chuckleheaded
- clean
- clear
- cockeyed
- crackpot
- crazy
- cretinous
- cuckoo
- daffy
- daft
- dense
- depleted
- deserted
- devoid
- dim
- dim-witted
- dippy
- doltish
- dopey
- dopy
- dorky
- dotty
- drained
- dry
- dull
- dumb
- dunderheaded
- emptied
- empty
- empty-headed
- exhausted
- fallacious
- fatuous
- featherheaded
- feebleminded
- fool
- foolish
- forsaken
- free
- gormless
- half-baked
- half-witted
- harebrained
- hollow
- idiotic
- idiotical
- ignorant
- illiterate
- illogical
- imbecile
- imbecilic
- inane
- insane
- invalid
- irrational
- knuckleheaded
- kookie
- kooky
- lamebrain
- lamebrained
- looney
- loony
- lowbrow
- lunatic
- lunkheaded
- mad
- mindless
- minus
- moronic
- nonsensical
- nutty
- oafish
- obtuse
- opaque
- open
- pinheaded
- preposterous
- sappy
- screwball
- senseless
- shallow
- silly
- simple
- simpleminded
- slow
- slow-witted
- soft
- softheaded
- stark
- stupid
- superficial
- thick
- thick-witted
- thickheaded
- tomfool
- toom
- unattended
- uncomprehending
- uneducated
- unfilled
- unfurnished
- uninformed
- uninhabited
- unintellectual
- unintelligent
- unoccupied
- unreasonable
- unreasoning
- unsmart
- untaught
- unthinking
- unwise
- vacant
- vacated
- void
- wacky
- weak-minded
- whacky
- witless
- zany