[ uhn-tahy-dee ]
/ ʌnˈtaɪ di /

adjective, un·ti·di·er, un·ti·di·est.

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), un·ti·died, un·ti·dy·ing.

to mess up; disorder; disarrange: The guests untidied the room.

Nearby words

  1. unthought,
  2. unthought-of,
  3. unthread,
  4. unthrifty,
  5. unthrone,
  6. untie,
  7. until,
  8. untimely,
  9. untimeous,
  10. untinged

Origin of untidy

Middle English word dating back to 1175–1225; see origin at un-1, tidy

Related formsun·ti·di·ly, adverbun·ti·di·ness, noun

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for untidiest

  • I entered what was then, and probably is still, the untidiest room in England.

    Sonia Between two Worlds|Stephen McKenna
  • It is altogether the untidiest public park I saw in Ireland.

    One Irish Summer|William Eleroy Curtis
  • The bloods wore evening dress; even the untidiest junior oiled his hair and put on a clean collar.

British Dictionary definitions for untidiest


/ (ʌnˈtaɪdɪ) /

adjective -dier or -diest

not neat; slovenly

verb -dies, -dying or -died

(tr) to make untidy
Derived Formsuntidily, adverbuntidiness, 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 untidiest



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