Definition of lunatic Lunatic

/luˈnʌtɪˌk/ - [lunutik] - lu•na•tic

We found 9 definitions of lunatic from 4 different sources.

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What does lunatic mean?

WordNet

WordNet by Princeton University

Noun

Plural: lunatics

lunatic - an insane person
  madman, maniac
  diseased person, sick person, sufferer a person suffering from an illness
  crazy, looney, loony, nutcase, weirdo someone deranged and possibly dangerous
  bedlamite an archaic term for a lunatic
  pyromaniac a person with a mania for setting things on fire
lunatic - a reckless impetuous irresponsible person
  daredevil, madcap, hothead, swashbuckler, harum-scarum
  adventurer, venturer a person who enjoys taking risks

Adjective

lunatic - insane and believed to be affected by the phases of the moon
  moonstruck
  insane afflicted with or characteristic of mental derangement; "was declared insane"; "insane laughter"
  colloquialism a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech
= synonym
= antonym
= related word

Wiktionary Wiktionary dictionary logo

Webster DictionaryWebster's Unabridged Dictionary 📘

  • lunatic (a.)
    Affected by lunacy; insane; mad.
  • lunatic (a.)
    Of or pertaining to, or suitable for, an insane person; evincing lunacy; as, lunatic gibberish; a lunatic asylum.
  • lunatic (n.)
    A person affected by lunacy; an insane person, esp. one who has lucid intervals; a madman; a person of unsound mind.

Part of speech

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Pronunciation

Word frequency

Lunatic is...

60% Complete
Very rare
Rare
Normal
Common
Very Common
66% Complete
Rare
Normal
Common

Sign Language

lunatic in sign language
Sign language - letter L Sign language - letter L Sign language - letter U Sign language - letter U Sign language - letter N Sign language - letter N Sign language - letter A Sign language - letter A Sign language - letter T Sign language - letter T Sign language - letter I Sign language - letter I Sign language - letter C Sign language - letter C