unreason

U1N1R1E1A1S1O1N1

noun

Lack of reason or rationality; unreasonableness; irrationality.

UncommonScrabble 8

Meanings

noununreason (usually uncountable, plural unreasons)

plural unreasons

  1. uncountableusuallyLack of reason or rationality; unreasonableness; irrationality.

    The best preservative for unreason is to make a religion of it.

    2014 April 22, Garry Wills, “Obamacare: The Hate Can’t Be Cured”, in New York Review of Books
    5 more examples

    c. 1566, John Knox, The Historie of the Reformation of the Church of Scotland, Book I, London: 1644, Another day the same Frier made another Sermon of the Abbot of Unreason, unto whom, and whose Laws, he compareth Prelats of that age; for they were subject to no Laws, no more than was the Abbot of Unreason.

    […] it was long ere these scandalous and immoral sports could be abrogated;—the rude multitude continued attached to their favourite pastimes, and, both in England and Scotland, the mitre of the Catholic—the rochet of the reformed bishop—and the cloak and band of the Calvinistic divine—were, in turn, compelled to give place to those jocular personages, the Pope of Fools, the Boy-Bishop, and the Abbot of Unreason.

    1820, Walter Scott, chapter 14, in The Abbot

    What is called the great popular heart was awakened, that indefinable something which may be, according to circumstances, the highest reason or the most brutish unreason.

    1864, James Russell Lowell, “Abraham Lincoln”, in My Study Windows, 4th edition, London: Sampson Low, Marston, Low, and Searle, published 1871, page 120

    1937, Robert Byron, The Road to Oxiana, “Shiraz, 18 February,” Of all the foreigners I have met in this country, diplomats, business men, and archaeologists of many nationalities and varying terms of residence, Christopher is the only one who likes its inhabitants, sympathizes with their nationalist growing-pains, and consistently upholds their virtues, sometimes to the point of unreason.

    Traditionally, black American dance students have been consistently steered away from classical ballet and toward the supposedly more “suitable” fields of modern, ethnic or Broadway-chorus dancing. The Harlem Dance Theater performances showed beyond doubt that the practice was based not on rhyme but on prejudiced unreason.

    1971 March 22, John T. Elson, “Doing the Thing You Do Best”, in Time
  2. uncountableusuallyNonsense; folly; absurdity.
verbunreason (third-person singular simple present unreasons, present participle unreasoning, simple past and past participle unreasoned)

present singular third person unreasons · participle present unreasoning · participle past unreasoned · past unreasoned

  1. raretransitiveTo prove to be unreasonable; disprove by argument.

    Being a father can “unreason” your worldview, or at least make it very flexible, and that can create all sorts of fun and insights.

    2017, Adams Media, DAD: Hundreds of Awesome Quotes about the Guy Who Does It All, →ISBN
    2 more examples

    The reason of the unreasonable usage my reason has met with, so unreasons my reason, that I have reason to complain of your beauty :" and how did he enjoy the following flower of composition ! "

    1796, Miguel de Cervantes Saavedra (Tobias George Smollett: translator), The History and Adventures of the Renowned Don Quixote

    The elenchus enables him to overturn the formerly secure reasoning of his interlocutors about the subjects they discourse on so confidently—until the Socratic elenchus gradually unreasons them (see especially Meno, 80A—B).

    2013, Norman Bryson, Michael Ann Holly, Keith Moxey, Visual Culture: Images and Interpretations, →ISBN, page 191
  2. rareTo apply false logic or think without logic.

    In other, happier times, the mind could unreason freely, as if it belonged to no age, emancipated as it was...

    1985, Reginald Gibbons, Susan Hahn, TQ 20: Twenty Years of the Best Contemporary Writing and Graphics from TriQuarterly Magazine, page 89
    2 more examples

    After some trouble I have got the Programme, and now send it on to you ; I beg you to transcribe the first ten pages, in which he reasons, or rather unreasons, about homeopathy, and then send the Programme back to me, as I do not know how to procure another copy.

    1889, The Homoeopathic World - Volume 24, page 251

    Just as Heidegger's reflections on the imagination led him to think "The nothing nothings," so Foucault's reflections on madness led him, in effect, to think "Unreason unreasons."

    2005, Andrew Cutrofello, Continental Philosophy: A Contemporary Introduction, →ISBN, page 88
  3. rareTo make unreasonable; to deprive of reason.

    My pathetic collapse provoked them. My unreasonableness unreasoned them.

    2010, Tim Roux -, Shade+shadows: And Suddenly, Silently, They Simply Disappeared, →ISBN
    1 more example

    Unbelief unreasons a man: so the Apostle joyns them, when he prays to be delivered from unreasonable men; for all men have not faith.

    1646, Thomas Case, Deliverance-obstruction, page 12

Synonyms & antonyms

nounthe state of being irrational; lacking powers of understanding

Broader

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Middle Englishunreson
  2. Englishunreason

From Middle English unreson; equivalent to un- + reason.

Full word history & related roots →

Translations

Bulgarian безумие, глупост
  • безумие (bezumie)lack of reason
  • глупост (glupost)nonsense, folly
Esperanto malracieco
  • malraciecolack of reason
French déraison
  • déraisonnonsense, folly
German Unvernunft, Torheit
  • Unvernunftlack of reason
  • Torheitnonsense, folly
Irish aingiall, éigiall
  • aingialllack of reason
  • éigialllack of reason
  • míréasúnlack of reason
Polish bezrozum, bezrozumność
  • bezrozumlack of reason
  • bezrozumnośćlack of reason
Cite this entry
APA

unreason. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/unreason

MLA

“unreason.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/unreason. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “unreason,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/unreason.

Source: unreason on Wiktionary, CC BY-SA 4.0.