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

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

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

Examples of lunatic in a Sentence

Recent Examples on the Web

Adjective

There’s no malice involved in lunatic-appeasement, however. —Erik Wemple, Washington Post, 19 July 2022

Meanwhile, mom Linda (John Roberts) cheerleads with lunatic optimism. —Amy Nicholson, Variety, 23 May 2022

Having long since given up on reigning in the enormous lunatic wing of their party, Republican leaders had, particularly after the rise of Donald Trump, began actively catering to it. —Alex Shephard, The New Republic, 20 Apr. 2022

The point of such a response would be to portray the Democrats as the reasonable party upholding moderation and decency in the face of a lunatic assault on the rights and freedoms of the female half of the population. —Damon Linker, The Week, 1 Apr. 2022