illogical
The word “illogical” has 4 syllables: il-log-i-cal
It's pronounced as /ɪˈlɒdʒɪkəl/
What is synonym and antonym for illogical?
In the thesaurus, “illogical” has 76 synonyms and 40 antonyms.
Here are synonyms and antonyms for illogical along with examples of usage in sentences.
Synonyms for illogical
- Kafkaesque
- absurd
- asinine
- casuistic
- cockeyed
- disordered
- disorganized
- eristic
- eristical
- fallacious
- false
- fatuous
- faulty
- foolish
- groundless
- half-baked
- hollow
- ill-advised
- illegitimate
- implausible
- inconclusive
- incongruous
- inconsequent
- inconsequential
- inconsistent
- incorrect
- inexplicable
- insane
- invalid
- irrational
- irrelevant
- mad
- meaningless
- misguided
- misleading
- nonrational
- nonsensical
- not following
- nutty
- odd
- off the wall
- peculiar
- preposterous
- rambling
- random
- reasonless
- screwy
- self-contradictory
- senseless
- silly
- sophistic
- sophistical
- specious
- spurious
- strange
- surreal
- unaccountable
- unconnected
- unconsidered
- unconvincing
- unexplainable
- unproved
- unreasonable
- unreasoned
- unreasoning
- unscientific
- unsound
- unsubstantial
- untenable
- unusual
- wacky
- weak
- weird
- whacky
- without basis
- without foundation
Antonyms for illogical
- certain
- clear
- cogent
- commonsense
- compelling
- confirmed
- convincing
- correct
- corroborated
- credible
- demonstrated
- enlightened
- established
- informed
- just
- justified
- logical
- meaningful
- ordered
- organized
- persuasive
- plausible
- rational
- reasonable
- reasoned
- right
- sane
- satisfying
- sensible
- sober
- solid
- sound
- substantiated
- sure
- true
- valid
- validated
- well-founded
- well-grounded
- wise
Meanings of illogical
- adjective
- Contrary to logic; lacking sense or sound reasoning.
Example Sentences
- Despite her best efforts, she couldn't understand the illogical reasoning behind his decision.
- The professor pointed out the flaws in the student's argument, citing its illogical conclusions.
- It was illogical to expect a different outcome when repeating the same failed experiment.
- The company's decision to downsize its most profitable division seemed completely illogical.
- His behavior was erratic and illogical, leaving his friends and family puzzled and concerned.
On this page you'll find 116 synonyms, antonyms, or another words to illogical, such as: Kafkaesque, absurd, asinine, casuistic, certain, clear, cockeyed.
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
fabricated
- a bit thick
- abstract
- ad-libbed
- affected
- allegorical
- amplified
- artificial
- assembled
- assumed
- baseless
- began
- beguiled
- bogus
- bouncing
- built
- bum
- came up with
- caricatural
- carpentered
- chimeric
- chimerical
- coined
- combined
- complete
- completed
- conceived
- concocted
- confected
- constituted
- constructed
- contrived
- counterfeit
- cozened
- crafted
- created
- cultivated
- daydreamed
- deceived
- deceptive
- defamed
- deluded
- designed
- devised
- dissembled
- dissimulated
- distorted
- done
- dreamed
- dreamt
- drummed up
- duped
- embroidered
- envisaged
- envisioned
- equivocated
- erected
- ersatz
- established
- exalted
- excessive
- excogitated
- extemporized
- extravagant
- fabled
- fabulous
- factitious
- faked
- fallacious
- false
- falsified
- famed
- fanciful
- fantasized
- fantastic
- fantastical
- farfetched
- fashioned
- fathered
- faux
- fibbed
- fictional
- fictitious
- fooled
- foreswore
- forged
- formed
- forswore
- foundationless
- founded
- framed
- fraudulent
- fudged
- garbled
- generated
- gratuitous
- groundless
- gulled
- hammered
- hammy
- handcrafted
- hatched
- hewed
- highly colored
- histrionic
- histrionical
- hoaxed
- hoodwinked
- hyperbolic
- idle
- illogical
- imaginary
- imagined
- imitation
- impossible
- improvised
- inaugurated
- industrial
- inflated
- initiated
- innovated
- instituted
- invented
- jerry-built
- kidded
- knocked out
- legendary
- libeled
- libelled
- lied
- machined
- made
- made up
- made-up
- magnified
- make believe
- make-believe
- man-made
- manufactured
- mass-produced
- mechanical
- melodramatic
- mendacious
- minted
- misguided
- misinformed
- misleading
- misled
- misreported
- misrepresented
- misstated
- mock
- molded
- mythic
- mythical
- mythologic
- mythological
- nonnatural
- not genuine
- off-base
- organized
- originated
- out of proportion
- overblown
- overdone
- overestimated
- overkill
- overwrought
- paltered
- perjured
- phony
- pictured
- pieced
- plastic
- prefabricated
- prepared
- preposterous
- pretend
- pretended
- pretentious
- prevaricated
- processed
- produced
- pseudo
- put together
- put up
- raised
- reared
- reassembled
- rebuilt
- reconstructed
- redeveloped
- reedified
- refashioned
- refined
- remade
- remanufactured
- reproduction
- retrofit
- retrofitted
- romanticized
- schmaltzy
- semilegendary
- sensational
- set up
- sham
- shaped
- simulated
- slandered
- snowed
- specious
- spectacular
- spurious
- steep
- storied
- strained
- structured
- stylized
- substitute
- synthetic
- tall
- threw up
- too much
- too-too
- took in
- tooled
- traduced
- tricked
- trumped up
- trumped-up
- uncalled-for
- united
- unjustified
- unnatural
- unproven
- unreal
- unrealistic
- unsubstantiated
- untrue
- untruthful
- unwarranted
- vain
- visioned
- visualized
- without basis
- without foundation
Kafkaesque
- absurd
- asinine
- baroque
- byzantine
- challenging
- complex
- complicate
- complicated
- composite
- compound
- convoluted
- daedal
- difficult
- disordered
- disorganized
- elaborate
- eristic
- eristical
- fallacious
- foolish
- half-baked
- heterogeneous
- ill-advised
- illegitimate
- illogical
- impenetrable
- incomprehensible
- inconsequent
- inconsequential
- inconsistent
- inexplicable
- insane
- intricate
- invalid
- involute
- involved
- irrational
- knotty
- labyrinthian
- labyrinthine
- mad
- meaningless
- misguided
- misleading
- mixed
- multibranched
- multifaceted
- multifarious
- multipart
- nonrational
- nonsensical
- nutty
- odd
- overcomplex
- overcomplicated
- peculiar
- preposterous
- rambling
- random
- reasonless
- senseless
- silly
- sophistic
- sophistical
- sophisticated
- specious
- strange
- surreal
- tangled
- tough
- unconsidered
- unconvincing
- unfathomable
- unintelligible
- unreasonable
- unreasoned
- unreasoning
- unsound
- unusual
- varied
- wacky
- weak
- weird
- whacky
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