Synonyms of lunatic

lunatic 1 of 2

adjective

1

as in psychotic

having or showing a very abnormal or sick state of mind

he had a lunatic obsession with personal hygiene

Synonyms & Similar Words

• psychotic
• insane
• mad
• nuts
• maniac
• maniacal
• crazy
• mental
• paranoid
• gaga
• psycho
• crazed
• looney
• deranged
• demented
• loony
• whacko
• wacko
• disturbed
• paranoidal
• cuckoo
• whacky
• unhinged
• irrational
• nutty
• strange
• certifiable
• eccentric
• crackpot
• ballistic
• bedlam
• wacky
• daft
• batty
• moonstruck
• kooky
• unbalanced
• cracked
• around the bend
• daffy
• meshuga
• screwy
• loco
• foolish
• bonkers
• barmy
• scatty
• loony tunes
• hysteric
• kookie
• haywire
• odd
• bughouse
• crackbrained
• depressed
• obsessed
• unreasonable
• out to lunch
• brainsick
• bats
• non compos mentis
• unsound
• meshuggah
• hysterical
• looney tunes
• distraught
• schizophrenic
• delusional
• meshugah
• paranoic
• paranoiac
• neurotic
• frantic
• fey
• delusionary
• cranky
• sociopathic
• distracted
• schizoid
• meshugge
• crackers
• queer
• loopy
• fruity
• balmy
• delirious
• obsessive-compulsive
• tetched
• off
• nuclear
• wud
• oddball
• out of one's mind
• disordered
• dotty
• off one's rocker
• aberrant
• off one's gourd
• off one's head
• out of one's head
• witless
• touched
• pixillated
• berserk
• raving
• pixilated
• amuck
• potty
• monomaniacal
• monomaniac
• ape
• wigged-out
• senseless
• frenzied
• teched
• amok
• fixated
• bananas

Antonyms & Near Antonyms

• sane
• sound
• reasonable
• rational
• balanced
• clear
• normal
• sensible
• lucid
• wise
• uncrazy
• judicious
• compos mentis
• healthy
• well-adjusted
• unneurotic

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• sane
• sound
• reasonable
• rational
• balanced
• clear
• normal
• sensible
• lucid
• wise
• uncrazy
• judicious
• compos mentis
• healthy
• well-adjusted
• unneurotic

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2

as in stupid

showing or marked by a lack of good sense or judgment

such lunatic clowning during a solemn ceremony is completely inappropriate

Synonyms & Similar Words

• stupid
• foolish
• mad
• silly
• absurd
• crazy
• insane
• idiotic
• looney
• irrational
• loony
• fool
• ridiculous
• zany
• whacky
• nutty
• dumb
• nonsensical
• idiotical
• crackpot
• cuckoo
• fatuous
• wacky
• kooky
• witless
• asinine
• daft
• unreasonable
• simple
• weak
• preposterous
• screwball
• daffy
• simpleminded
• dippy
• weak-minded
• harebrained
• unwise
• brainless
• senseless
• dotty
• inept
• unreasoning
• jerky
• out to lunch
• sappy
• imbecile
• moronic
• slow
• kookie
• cockeyed
• half-witted
• tomfool
• half-baked
• lunkheaded
• balmy
• bubbleheaded
• imbecilic
• thoughtless
• feebleminded
• clueless
• unreasoned
• illogical
• brain-dead
• unintelligent
• dopey
• doltish
• mindless
• lamebrain
• featherheaded
• vacuous
• ludicrous
• pinheaded
• obtuse
• oafish
• thickheaded
• dull
• dim
• dunderheaded
• dense
• farcical
• dorky
• invalid
• softheaded
• fallacious
• nonrational
• laughable
• dopy
• opaque
• surd
• lamebrained
• gormless
• knuckleheaded
• empty-headed
• clownish
• thick
• dim-witted
• chuckleheaded
• unsound
• soft
• airheaded
• notional
• buffoonish
• slow-witted
• birdbrained
• boobish
• ill-advised
• unconsidered
• chowderheaded

Antonyms & Near Antonyms

• sane
• sound
• wise
• sensible
• prudent
• judicious
• intelligent
• reasonable
• clever
• rational
• bright
• smart
• logical
• sagacious
• valid
• sage
• sapient
• brainy
• well-advised

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• sane
• sound
• wise
• sensible
• prudent
• judicious
• intelligent
• reasonable
• clever
• rational
• bright
• smart
• logical
• sagacious
• valid
• sage
• sapient
• brainy
• well-advised

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lunatic

2 of 2

noun

1

as in psychopath

a person having or showing a severely disordered or abnormal state of mind

he was raving like a lunatic

Synonyms & Similar Words

• psychopath
• maniac
• fool
• psycho
• bug
• loony
• wacko
• schizo
• loon
• nutcase
• nutter
• sicko
• psychotic
• whacko
• fruitcake
• madman
• crazy
• nut
• abnormal
• madwoman
• patient
• head case
• paranoid
• sickie
• crack
• character
• schizophrenic
• eccentric
• monomaniac
• manic-depressive
• crackbrain
• sociopath
• deviant
• neurotic
• obsessive
• weirdo
• schizoid
• crackpot
• kook
• fantastic
• psychoneurotic
• oddball
• screwball
• case
• original
• zany
• flake
• codger
• obsessive-compulsive
• crank
• mythomaniac
• oddity
• tike
• schizophrene
• tyke
• quiz

2

as in fool

a person who lacks good sense or judgment

no, you can't ski off the roof, you lunatic!

Synonyms & Similar Words

• fool
• goose
• idiot
• moron
• nut
• nutcase
• cuckoo
• simpleton
• ninny
• monkey
• jackass
• half-wit
• dingbat
• loser
• booby
• turkey
• nitwit
• doofus
• charley
• simp
• nincompoop
• madman
• daredevil
• charlie
• dipstick
• ding-dong
• berk
• mooncalf
• ninnyhammer
• git
• featherhead
• donkey
• dummy
• nit
• imbecile
• madwoman
• know-nothing
• numbskull
• ding-a-ling
• ignoramus
• dolt
• yo-yo
• knucklehead
• goon
• dunce
• blockhead
• pinhead
• character
• weirdo
• airhead
• numskull
• kook
• crackpot
• scatterbrain
• dope
• dork
• schnook
• gander
• schlub
• oddball
• laughingstock
• fathead
• screwball
• chump
• dodo
• shlub
• dupe
• crank
• schlemiel
• birdbrain
• dumbbell
• mockery
• stock
• butt
• codger
• shlemiel
• schlump
• featherbrain
• crackbrain

Antonyms & Near Antonyms

• brain
• genius
• sage
• thinker

• brain
• genius
• sage
• thinker