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See more synonyms for loopy on Thesaurus.com
adjective, loop·i·er, loop·i·est.
  1. full of loops.
  2. Slang.
    1. eccentric; crazy; dotty.
    2. befuddled or confused, especially due to intoxication.
  3. Scot. crafty; sly.
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Origin of loopy

First recorded in 1815–25; loop1 + -y1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for loopy

insane, crazy, witless, ludicrous, wacky, kooky, nutty, ridiculous, silly, absurd, zany, asinine, brainless, daffy, daft, dippy, doltish, dotty, fantastic, fatuous

Examples from the Web for loopy

Contemporary Examples of loopy

Historical Examples of loopy

  • Sometimes this path is loopy, and its little nods correspond to nutation.

  • "You don't have to hold him," called Captain Burgee, dismounting from Loopy the mate.

    Sugar Plum

    Reginald Bretnor

  • Under it was written in her black, loopy handwriting, "My Hero and my Love."

    Shadows of Flames

    Amelie Rives

  • I should use very thick worsted and make very big, loopy, spready stitches.

British Dictionary definitions for loopy


adjective loopier or loopiest
  1. full of loops; curly or twisted
  2. informal slightly mad, crazy, or stupid
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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 loopy


"full of loops," 1856, from loop + -y (2). Slang sense "crazy" is attested from 1923. Earlier figurative sense was "cunning, deceitful" (by 1825).

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Online Etymology Dictionary, © 2010 Douglas Harper