Thesaurus
Synonyms & Antonyms of lunatic
(Entry 1 of 2)
1
having or showing a very abnormal or sick state of mind
- he had a lunatic obsession with personal hygiene
Synonyms for lunatic
- balmy,
- barmy
- [chiefly British],
- bats,
- batty,
- bedlam,
- bonkers,
- brainsick,
- bughouse
- [slang],
- certifiable,
- crackbrained,
- cracked,
- crackers,
- crackpot,
- cranky
- [dialect],
- crazed,
- crazy,
- cuckoo,
- daffy,
- daft,
- demented,
- deranged,
- fruity
- [slang],
- gaga,
- haywire,
- insane,
- kooky
- (also kookie),
- loco
- [slang],
- loony
- (also looney),
- loony tunes
- (or looney tunes),
- mad,
- maniacal
- (also maniac),
- mental,
- meshuga
- (or meshugge also meshugah or meshuggah),
- moonstruck,
- non compos mentis,
- nuts,
- nutty,
- psycho,
- psychotic,
- scatty
- [chiefly British],
- screwy,
- unbalanced,
- unhinged,
- unsound,
- wacko
- (also whacko),
- wacky
- (also whacky),
- wud
- [chiefly Scottish]
Words Related to lunatic
- aberrant,
- delirious,
- delusional,
- delusionary,
- disordered,
- disturbed,
- neurotic,
- obsessive-compulsive,
- paranoiac
- (also paranoic),
- paranoid
- (also paranoidal),
- schizoid,
- schizophrenic,
- sociopathic
- distracted,
- distraught,
- frantic,
- frenzied,
- hysterical
- (also hysteric),
- raving,
- wigged-out
Phrases Synonymous with lunatic
Near Antonyms for lunatic
Antonyms for lunatic
2
showing or marked by a lack of good sense or judgment
- such lunatic clowning during a solemn ceremony is completely inappropriate
Synonyms for lunatic
- absurd,
- asinine,
- balmy,
- brainless,
- bubbleheaded,
- cockeyed,
- crackpot,
- crazy,
- cuckoo,
- daffy,
- daft,
- dippy,
- dotty,
- fatuous,
- featherheaded,
- fool,
- foolish,
- half-baked,
- half-witted,
- harebrained,
- inept,
- insane,
- jerky,
- kooky
- (also kookie),
- loony
- (also looney),
- lunkheaded,
- mad,
- nonsensical,
- nutty,
- preposterous,
- sappy,
- screwball,
- senseless,
- silly,
- simpleminded,
- stupid,
- tomfool,
- unwise,
- wacky
- (also whacky),
- weak-minded,
- witless,
- zany
Words Related to lunatic
- airheaded,
- birdbrained,
- boobish,
- brain-dead,
- chowderheaded,
- chuckleheaded,
- clueless,
- dense,
- dim,
- dim-witted,
- doltish,
- dopey
- (also dopy),
- dorky
- [slang],
- dull,
- dumb,
- dunderheaded,
- empty-headed,
- feebleminded,
- gormless
- [chiefly British],
- idiotic
- (also idiotical),
- imbecile
- (or imbecilic),
- knuckleheaded,
- lamebrain
- (or lamebrained),
- mindless,
- moronic,
- oafish,
- obtuse,
- opaque,
- pinheaded,
- simple,
- slow,
- slow-witted,
- soft,
- softheaded,
- thoughtless,
- thick,
- thickheaded,
- unintelligent,
- vacuous
Phrases Synonymous with lunatic
Near Antonyms for lunatic
Antonyms for lunatic
lunatic
nounSynonyms & Antonyms of lunatic (Entry 2 of 2)
1
a person having or showing a severely disordered or abnormal state of mind
- he was raving like a lunatic
Synonyms for lunatic
Words Related to lunatic
- madman,
- madwoman
- manic-depressive,
- monomaniac,
- mythomaniac,
- neurotic,
- obsessive,
- obsessive-compulsive,
- paranoid,
- psychoneurotic,
- psychotic,
- schizo,
- schizoid,
- schizophrene,
- schizophrenic,
- sociopath
2
a person who lacks good sense or judgment
- no, you can't ski off the roof, you lunatic!
Synonyms for lunatic
- berk
- [British],
- booby,
- charlie
- (also charley)
- [British],
- cuckoo,
- ding-a-ling,
- ding-dong,
- dingbat,
- dipstick,
- doofus
- [slang],
- featherhead,
- fool,
- git
- [British],
- goose,
- half-wit,
- jackass,
- mooncalf,
- nincompoop,
- ninny,
- ninnyhammer,
- nit
- [chiefly British],
- nitwit,
- nut,
- nutcase,
- simp,
- simpleton,
- turkey,
- yo-yo
Words Related to lunatic
Near Antonyms for lunatic
Learn More About lunatic
Cite this Entry
“Lunatic.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/lunatic. Accessed 24 Jan. 2022.
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The first known use of lunatic was in the 14th century
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