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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. 2018.
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Examples from the Web for untidiness
Historical Examples
  • Books were strewn here and there, but there was no slovenliness or untidiness; and, ha!

    My New Curate P.A. Sheehan
  • "I'll leave this untidiness for your man to clear," said Kitson.

    The Green Rust Edgar Wallace
  • In spite of her untidiness, we all liked her, for she was always good company.

    Cricket at the Seashore Elizabeth Westyn Timlow
  • For heaven's sake forgive the untidiness of this whole note.

  • Ela was thinking deeply, and frowning at the untidiness of the table.

    The Secret House Edgar Wallace
  • Perhaps it's the haste that makes the June-bug's untidiness.

    Little Busybodies

    Jeanette Augustus Marks and Julia Moody
  • No untidiness there; all so carefully, thoughtfully arranged.

    What Will He Do With It, Complete Edward Bulwer-Lytton
  • Ladies were always sensitive about untidiness, and, of course, the room was untidy.

    Young Blood E. W. Hornung
  • Had Clare never got into a row for untidiness in her own young days?

    Regiment of Women Clemence Dane
  • It shows itself in many habits of recklessness, wastefulness, and untidiness.

    The Silent Readers William D. Lewis
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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