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lunatic

nounadjectivecommon in dialogue

  • //ˈluːnətɪk//
  • //luːˈnætɪk//

An insane person.

noun

  1. 1

    An insane person.

    While there are other races (or individuals—heaven forgive me, I am no ethnologist) who think you a criminal or a lunatic unless you carefully plod along from step to step like a hippopotamus out of water.

    You may be right I may be crazy Oh, but it just may be a lunatic you're looking for

Etymology

From Middle English lunatik, from Old French lunatique, from Late Latin lunaticus (“moonstruck”), derived from Latin luna (“moon”), the connection stemming from the belief that changes of the moon caused intermittent insanity.

adjective

  1. 1

    Crazed, mad, insane, demented.

  2. 2

    rareRelating to the Moon; lunar.

    As the narrator turns his attention to the moon itself and its Lunatic inhabitants, Heinsius seems to draw on the True History, but is still within the confines of the Icaromenippus.

    That or I might bounce off something I hit and head back out into space, become the light in the eye of some lunatic observer, looking up at the big blue ball and seeing me bang something in their retina.

  3. 3

    rareInfluenced or affected by the Moon.

    This I remember: she was false as the lunatic sea.

Forms

plural
lunatics
comparative
more lunatic
superlative
most lunatic
The neighbouring pagesAlphabetical order follows the rules of the language, not byte values: an accent decides only between two otherwise identical words, and Spanish files Ñ as a letter of its own.

Lexical content from Wiktionary, under CC BY-SA 4.0 · Source entry · Data version 2026-08-23

Rank among the words of the OpenSubtitles 2018 corpus — film and television subtitles, so spoken rather than written usage (CC BY-SA 3.0).