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

  • adj. So unusual as to be surprising; uncanny.
  • n. An unusual or amazing person.
  • n. A stranger.
  • n. News.
  • adv. To an excessive degree; remarkably.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Strange, weird.
  • adv. Very.
  • adj. Uncoordinated.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Unknown; strange, or foreign; unusual, or surprising; distant in manner; reserved.
  • adv. In a high degree; to a great extent; greatly; very.
  • n. A strange thing or person.

from The Century Dictionary and Cyclopedia

  • Unknown; strange; unusual. (Child's Ballads, II. 342).
  • n. Anything strange or prodigious.
  • n. A strange person; a stranger.
  • Wonderfully; remarkably; very: as, unco glad; unco guid.

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

  • adv. to a remarkable degree or extent


Middle English unkow, variant of uncouth, strange; see uncouth.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Scots unco, shortening of uncouth. (Wiktionary)
From uncoordinated. (Wiktionary)



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  • At night when the campfire has sunk low,
    Then kids hone their skills spinning bunco.
    They fill their friends’ ears
    With engineered fears,
    Weaving tales of the weird and the unco.

    April 8, 2014

  • Uncoordinated.

    October 5, 2008

  • Sense is usually negative. Burns' poem 'Address to the Unco Guid' is an attack on the rigidly righteous.

    December 28, 2007