Synonyms of lunatic
48 similar words
Another word for lunatic is mad. Other synonyms of lunatic are maniacal.
Synonyms and similar words for lunatic
nounAn insane person.
- moonlingA simpleton; a lunatic.
- basket case
- basket weaver Australia
- crack
- crackpotAn eccentric, crazy or foolish person.
- crazyAn insane or eccentric person; a crackpot.
- crazyheadA crazy person; an eccentric.
- dingbat Australia, US
- eccentric euphemistic
- fruit and nut case Australia, UK
- fruit cake
- fruit loop Australia, USA gayborhood area of Las Vegas.
- fruitloop Australia, USA crazy person; a lunatic.
- head caseUsed other than figuratively or idiomatically: see head, case.
- kookAn eccentric, strange or crazy person.
- loonyAn insane or very foolish person.
- loony tuneA silly or crazy person; a person whose actions are unpredictable and irrational.
- madheadA crazy person.
- mental caseAn insane person; a nutcase.
- nutA crazy person.
- nut ball
- nutbarA crazy, eccentric person.
- nutburger
- nutcase
- nutjob
- nutterAn eccentric, insane, crazy or reckless person.
- psycho
- psychoceramicA crackpot.
- schizoA mad or crazy person.
- screwball
- space cadet
- space pilot Australia
- unconventional euphemisticSomething or someone that is unconventional.
- wackadooA crazy person; wacko.
- wackadoodleA crazy, irrational, or eccentric person.
- wackoAn amusingly eccentric or irrational person.
- whackjobA crazy, possibly dangerous, person.
- whacko
- weirdo
- wingnutA person who is or seems odd, eccentric, or crazy; especially, someone with bizarre or extreme political views.
- space caseAn insane or eccentric person who has little grip on reality.
- madcap obsolete, rareAn insane person; a lunatic.
Meaning of lunatic
- noun An insane person.
- adjective Crazed, mad, insane, demented.
- adjective Relating to the Moon; lunar.
lunatic in other languages
Questions about synonyms of lunatic
Source and license
Adapted from Wiktionary: lunatic (page history and authors) and the entries of the words listed. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws grouped the synonyms and antonyms by meaning and added links. Wiktionary data of 2026-09-02.
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Cite this page: “Synonyms of lunatic.” Word.ws, https://word.ws/synonyms/lunatic. Based on Wiktionary, CC BY-SA 4.0.