• synonyms


adjective, lun·i·er, lun·i·est, noun, plural lun·ies.
  1. loony1.
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or loon·ey, lun·y

adjective, loon·i·er, loon·i·est.
  1. lunatic; insane.
  2. extremely or senselessly foolish.
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noun, plural loon·ies.
  1. a lunatic.
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Origin of loony

First recorded in 1860–65; lun(atic) + -y2
Related formsloon·i·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for luny

Historical Examples of luny

  • "I ain't surprised at anything from that luny," said another voice.

    A Son of Hagar

    Sir Hall Caine

  • I thought more'n as likely as not I had got a luny on my hands for the rest of my days.

  • Moral: People who expect to be Luny will find it safer to travel in a Bunch.

    Fables in Slang

    George Ade

  • Even then you talked of her only when the knock on your head sent you luny.

    For the Soul of Rafael

    Marah Ellis Ryan

  • Mother says I was luny most of the time after they struck in.

    The Story Girl

    Lucy Maud Montgomery

British Dictionary definitions for luny


looney or luny

adjective loonier, looniest, lunier or luniest
  1. lunatic; insane
  2. foolish or ridiculous
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noun plural loonies, looneys or lunies
  1. a foolish or insane person
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Derived Formslooniness or luniness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for luny



also loonie, looney, 1853, American English, short for lunatic, but also influenced by loon (n.2) and perhaps loon (n.1), the bird being noted for its wild cry and method of escaping from danger. As a noun by 1884, from the adjective. Slang loony bin "insane asylum" is from 1919. Looney left in reference to holders of political views felt to be left-wing in the extreme is from 1977. Looney Tunes, Warner Bros. studios' animated cartoon series, dates from 1930.

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Online Etymology Dictionary, © 2010 Douglas Harper