Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective Extremely foolish or silly.
  • adjective Mentally deranged; crazy.
  • noun A foolish or crazy person.

from The Century Dictionary.

  • noun See luny.

from the GNU version of the Collaborative International Dictionary of English.

  • adjective Low, U.S. Crazy; insane; lunatic; mentally unsound.
  • adjective Very foolish; very impractical.
  • noun someone mentally deranged and possibly dangerous.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective of a person insane
  • adjective of a thing very silly, absurd
  • noun An insane or very foolish person

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun someone deranged and possibly dangerous
  • adjective informal or slang terms for mentally irregular

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[Shortening and alteration of lunatic, or from loon.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

Shortened from lunatic

Examples

  • Sorry about using the term loony left - I've been spending too much time looking at Labour Home - I think a £7 an hour minimum wage and renewable energy policies are nuts though.

    Orderly Transition?

  • His climate change misstep follows several reversals on issues and just plain loony comments on gays, women, Medicare, Social Security and taxes.

    Ellen Dumm: Will the Buck Ever Stop?

  • His climate change misstep follows several reversals on issues and just plain loony comments on gays, women, Medicare, Social Security and taxes.

    Ellen Dumm: Will the Buck Ever Stop?

  • His climate change misstep follows several reversals on issues and just plain loony comments on gays, women, Medicare, Social Security and taxes.

    Ellen Dumm: Will the Buck Ever Stop?

  • His climate change misstep follows several reversals on issues and just plain loony comments on gays, women, Medicare, Social Security and taxes.

    Ellen Dumm: Will the Buck Ever Stop?

  • His climate change misstep follows several reversals on issues and just plain loony comments on gays, women, Medicare, Social Security and taxes.

    Ellen Dumm: Will the Buck Ever Stop?

  • I've posted several articles that quote British "nutritionists" making overblown or just plain loony claims about milk and dairy allergy.

    More UK Dairy Allergy Nonsense

  • Like the man says, theres alcoholisum, suicde and violence in loony toons and these are deamed ok for kids how do you people think this is worse?

    EXTRALIFE – By Scott Johnson - Today’s Comic: JUMP!

  • Zach Exley is the fringe left, and has been traveling in loony left circles for years.

    Balloon Juice » 2004 » June

  • I knew steph would not produce a link to back up her claim that 'However I do not regard him as 'loony' - it was more a reference to the accusation by some atheist/agnostic bloggers that *all of us biblical historians are 'loony'* and 'absurd'

    Jesus and History around the Web

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