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in sane
adjective as in irrational
Strongest matches
adjective as in loony
adjective as in lunatic
adjective as in manic
adjective as in nuts/nutty
adjective as in possessed
adjective as in preposterous
Strongest matches
adjective as in psychotic
adjective as in rabid
Weak matches
- berserk
- bigoted
- bitten
- corybantic
- crazy
- deranged
- extreme
- extremist
- flipped
- foaming at the mouth
- frantic
- freaked-out
- frenetic
- hog-wild
- hot
- infuriated
- insane
- intemperate
- intolerant
- irrational
- keen
- mad
- mad-dog
- narrow-minded
- nutty
- obsessed
- overboard
- poisoned
- radical
- raging
- revolutionary
- sick
- sizzling
- smoking
- steamed up
- ultra
- ultraist
- violent
- wild
adjective as in sappy
adjective as in touched
adjective as in unbalanced
adjective as in unhinged
adjective as in unsound
Strongest matches
adjective as in wacky
adjective as in beside oneself
adjective as in manic
adjective as in nutty
adjective as in psychopathic
adjective as in undone
adjective as in out of one's mind
adjective as in nuts
adjective as in dippy
adjective as in imbecilic
Weak matches
- absurd
- asinine
- brainless
- cockamamie
- crazy
- daffy
- daft
- dippy
- doltish
- dotty
- fantastic
- fatuous
- feebleminded
- half-baked
- half-witted
- harebrained
- idiotic
- ill-advised
- ill-considered
- imprudent
- incautious
- indiscreet
- injudicious
- insane
- irrational
- jerky
- kooky
- loony
- ludicrous
- lunatic
- mad
- moronic
- nonsensical
- nutty
- preposterous
- ridiculous
- senseless
- short-sighted
- silly
- simple
- softheaded
- stupid
- tomfool
- unearthly
- unintelligent
- unreasonable
- unwise
- wacky
- weak
- witless
- zany
adjective as in ireful
Weak matches
- bent
- bent out of shape
- beside oneself
- boiling
- browned off
- bummed out
- corybantic
- crazed
- demented
- desperate
- enraged
- fierce
- fit to be tied
- foaming at the mouth
- frantic
- frenetic
- frenzied
- fuming
- hacked
- hopping mad
- in a towering rage
- incensed
- infuriated
- insane
- irate
- irrational
- livid
- maddened
- maniac
- rabid
- rage
- raging
- smoking
- steamed
- unreasonable
- up in arms
- vehement
- vicious
- violent
- wrathful
adjective as in loopy
Weak matches
- asinine
- brainless
- cockamamy
- daffy
- daft
- dippy
- doltish
- dotty
- fantastic
- fatuous
- feebleminded
- half-baked
- half-witted
- harebrained
- idiotic
- ill-advised
- ill-considered
- imbecilic
- imprudent
- incautious
- indiscreet
- injudicious
- irrational
- jerky
- loony
- lunatic
- mad
- moronic
- nonsensical
- preposterous
- senseless
- short-sighted
- simple
- softheaded
- stupid
- tomfool
- unearthly
- unintelligent
- unreasonable
- unwise
- weak
adjective as in madding
Strongest match
Weak matches
- agitated
- angry
- at wit's end
- berserk
- beside oneself
- corybantic
- crazy
- delirious
- deranged
- distraught
- excited
- flipped-out
- fraught
- freaked-out
- frenetic
- frenzied
- furious
- hectic
- hot and bothered
- hot under the collar
- hyper
- hysterical
- in a stew
- in a tizzy
- insane
- mad
- out of control
- overwrought
- panic-stricken
- rabid
- raging
- raving
- shook-up
- unglued
- unscrewed
- unzipped
- violent
- weird
- weirded out
- wigged out
- wild
- wired
- worked-up
- zonkers
adjective as in softheaded
Weak matches
- absurd
- asinine
- brainless
- cockamamy
- crazy
- daffy
- daft
- dippy
- doltish
- dotty
- fantastic
- fatuous
- feebleminded
- half-baked
- half-witted
- harebrained
- idiotic
- ill-advised
- ill-considered
- imbecilic
- imprudent
- incautious
- indiscreet
- injudicious
- insane
- irrational
- jerky
- kooky
- loony
- ludicrous
- lunatic
- mad
- moronic
- nonsensical
- nutty
- preposterous
- ridiculous
- senseless
- short-sighted
- silly
- simple
- stupid
- tomfool
- unearthly
- unintelligent
- unreasonable
- unwise
- wacky
- weak
- witless
- zany
adjective as in tomfool
Weak matches
- asinine
- brainless
- cockamamy
- daffy
- daft
- dippy
- doltish
- dotty
- fantastic
- fatuous
- feebleminded
- half-baked
- half-witted
- harebrained
- idiotic
- ill-advised
- ill-considered
- imbecilic
- imprudent
- incautious
- indiscreet
- injudicious
- insane
- kooky
- ludicrous
- mad
- moronic
- nonsensical
- nutty
- preposterous
- ridiculous
- senseless
- short-sighted
- softheaded
- unearthly
- unintelligent
- unreasonable
- unwise
- wacky
- weak
- witless
adjective as in crazy
Weak matches
- barmy
- bats in the belfry
- batty
- bonkers
- cracked
- crazed
- daft
- delirious
- demented
- deranged
- dingy
- dippy
- erratic
- flaky
- flipped
- flipped-out
- freaked-out
- fruity
- idiotic
- mad as a hatter
- mad as a March hare
- maniacal
- mental
- moonstruck
- nutty as fruitcake
- of unsound mind
- out of one's mind
- out of one's tree
- out to lunch
- round the bend
- screw loose
- screwy
- touched
- unbalanced
- unglued
- unhinged
- unzipped
adjective as in crazy
Strongest matches
adjective as in daft
adjective as in delirious
adjective as in demonic
adjective as in fantastic
Strongest matches
adjective as in foolish
Strongest matches
adjective as in frantic
Strong matches
adjective as in frenetic
adjective as in furious
adjective as in gonzo
adjective as in haywire
adjective as in idiotic
adjective as in irrational
Strongest matches
adjective as in loony
adjective as in lunatic
adjective as in manic
adjective as in nuts/nutty
adjective as in possessed
adjective as in preposterous
Strongest matches
adjective as in psychotic
adjective as in rabid
Weak matches
- berserk
- bigoted
- bitten
- corybantic
- crazy
- deranged
- extreme
- extremist
- flipped
- foaming at the mouth
- frantic
- freaked-out
- frenetic
- hog-wild
- hot
- infuriated
- insane
- intemperate
- intolerant
- irrational
- keen
- mad
- mad-dog
- narrow-minded
- nutty
- obsessed
- overboard
- poisoned
- radical
- raging
- revolutionary
- sick
- sizzling
- smoking
- steamed up
- ultra
- ultraist
- violent
- wild
adjective as in sappy
adjective as in touched
adjective as in unbalanced
adjective as in unhinged
adjective as in unsound
Strongest matches
adjective as in wacky
adjective as in beside oneself
adjective as in manic
adjective as in nutty
adjective as in psychopathic
adjective as in undone
adjective as in out of one's mind
adjective as in nuts
adjective as in dippy
adjective as in imbecilic
Weak matches
- absurd
- asinine
- brainless
- cockamamie
- crazy
- daffy
- daft
- dippy
- doltish
- dotty
- fantastic
- fatuous
- feebleminded
- half-baked
- half-witted
- harebrained
- idiotic
- ill-advised
- ill-considered
- imprudent
- incautious
- indiscreet
- injudicious
- insane
- irrational
- jerky
- kooky
- loony
- ludicrous
- lunatic
- mad
- moronic
- nonsensical
- nutty
- preposterous
- ridiculous
- senseless
- short-sighted
- silly
- simple
- softheaded
- stupid
- tomfool
- unearthly
- unintelligent
- unreasonable
- unwise
- wacky
- weak
- witless
- zany
adjective as in ireful
Weak matches
- bent
- bent out of shape
- beside oneself
- boiling
- browned off
- bummed out
- corybantic
- crazed
- demented
- desperate
- enraged
- fierce
- fit to be tied
- foaming at the mouth
- frantic
- frenetic
- frenzied
- fuming
- hacked
- hopping mad
- in a towering rage
- incensed
- infuriated
- insane
- irate
- irrational
- livid
- maddened
- maniac
- rabid
- rage
- raging
- smoking
- steamed
- unreasonable
- up in arms
- vehement
- vicious
- violent
- wrathful
adjective as in loopy
Weak matches
- asinine
- brainless
- cockamamy
- daffy
- daft
- dippy
- doltish
- dotty
- fantastic
- fatuous
- feebleminded
- half-baked
- half-witted
- harebrained
- idiotic
- ill-advised
- ill-considered
- imbecilic
- imprudent
- incautious
- indiscreet
- injudicious
- irrational
- jerky
- loony
- lunatic
- mad
- moronic
- nonsensical
- preposterous
- senseless
- short-sighted
- simple
- softheaded
- stupid
- tomfool
- unearthly
- unintelligent
- unreasonable
- unwise
- weak
adjective as in madding
Strongest match
Weak matches
- agitated
- angry
- at wit's end
- berserk
- beside oneself
- corybantic
- crazy
- delirious
- deranged
- distraught
- excited
- flipped-out
- fraught
- freaked-out
- frenetic
- frenzied
- furious
- hectic
- hot and bothered
- hot under the collar
- hyper
- hysterical
- in a stew
- in a tizzy
- insane
- mad
- out of control
- overwrought
- panic-stricken
- rabid
- raging
- raving
- shook-up
- unglued
- unscrewed
- unzipped
- violent
- weird
- weirded out
- wigged out
- wild
- wired
- worked-up
- zonkers
adjective as in softheaded
Weak matches
- absurd
- asinine
- brainless
- cockamamy
- crazy
- daffy
- daft
- dippy
- doltish
- dotty
- fantastic
- fatuous
- feebleminded
- half-baked
- half-witted
- harebrained
- idiotic
- ill-advised
- ill-considered
- imbecilic
- imprudent
- incautious
- indiscreet
- injudicious
- insane
- irrational
- jerky
- kooky
- loony
- ludicrous
- lunatic
- mad
- moronic
- nonsensical
- nutty
- preposterous
- ridiculous
- senseless
- short-sighted
- silly
- simple
- stupid
- tomfool
- unearthly
- unintelligent
- unreasonable
- unwise
- wacky
- weak
- witless
- zany
adjective as in tomfool
Weak matches
- asinine
- brainless
- cockamamy
- daffy
- daft
- dippy
- doltish
- dotty
- fantastic
- fatuous
- feebleminded
- half-baked
- half-witted
- harebrained
- idiotic
- ill-advised
- ill-considered
- imbecilic
- imprudent
- incautious
- indiscreet
- injudicious
- insane
- kooky
- ludicrous
- mad
- moronic
- nonsensical
- nutty
- preposterous
- ridiculous
- senseless
- short-sighted
- softheaded
- unearthly
- unintelligent
- unreasonable
- unwise
- wacky
- weak
- witless
adjective as in crazy
Weak matches
- barmy
- bats in the belfry
- batty
- bonkers
- cracked
- crazed
- daft
- delirious
- demented
- deranged
- dingy
- dippy
- erratic
- flaky
- flipped
- flipped-out
- freaked-out
- fruity
- idiotic
- mad as a hatter
- mad as a March hare
- maniacal
- mental
- moonstruck
- nutty as fruitcake
- of unsound mind
- out of one's mind
- out of one's tree
- out to lunch
- round the bend
- screw loose
- screwy
- touched
- unbalanced
- unglued
- unhinged
- unzipped
adjective as in crazy
Strongest matches
adjective as in daft
adjective as in delirious
adjective as in demonic
adjective as in fantastic
Strongest matches
adjective as in foolish
Strongest matches
adjective as in frantic
Strong matches
adjective as in frenetic
adjective as in furious
adjective as in gonzo
adjective as in haywire
adjective as in idiotic
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Synonym of the day
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On this page you'll find 1622 synonyms, antonyms, and words related to in-sane, such as: aberrant, absurd, crazy, foolish, incoherent, and insane.
From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.
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