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[uhn-tahy-dee] /ʌnˈtaɪ di/
adjective, untidier, untidiest.
not tidy or neat; slovenly; disordered:
an untidy room; an untidy person.
not well-organized or carried out:
an untidy plan.
verb (used with object), untidied, untidying.
to mess up; disorder; disarrange:
The guests untidied the room.
Origin of untidy
Middle English word dating back to 1175-1225; See origin at un-1, tidy
Related forms
untidily, adverb
untidiness, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for untidiness
Historical Examples
  • Dirt, untidiness, and noise, seem in nowise to afflict them.

  • For heaven's sake forgive the untidiness of this whole note.

  • Books were strewn here and there, but there was no slovenliness or untidiness; and, ha!

    My New Curate P.A. Sheehan
  • Had Clare never got into a row for untidiness in her own young days?

    Regiment of Women Clemence Dane
  • untidiness, uncleanness, carelessness, and shabbiness are not at all beautiful ornaments in a holy life.

  • untidiness is execrable, reprehensible, unseemly, and quite detestable.

    A Word to Women Mrs. C. E. Humphry
  • Frederick glanced hurriedly about the room, the untidiness of it all striking his sensitiveness.

    Tess of the Storm Country Grace Miller White
  • The smallness, the untidiness, the pure joy of Squibs Bailly's study!

    The Guarded Heights Wadsworth Camp
  • "I'll leave this untidiness for your man to clear," said Kitson.

    The Green Rust Edgar Wallace
  • In England she had borrowed the untidiness and tawdriness that degrade the English poor.

    Our House Elizabeth Robins Pennell
British Dictionary definitions for untidiness


adjective -dier, -diest
not neat; slovenly
verb -dies, -dying, -died
(transitive) to make untidy
Derived Forms
untidily, adverb
untidiness, 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
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Word Origin and History for untidiness



early 13c., "untimely, unseasonable, unsuitable," from un- (1) "not" + tidy (adj.). Cf. West Frisian ontidich, Middle Dutch ontidich, Dutch ontijdig, Old High German unzitich, German unzeitig, Norwegian utidig "untimely, unseasonable, unfavorable." Meaning "poorly cared for, not neat" is recorded from mid-14c.

Online Etymology Dictionary, © 2010 Douglas Harper
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