unreasonably

un·rea·son·a·bly
U1N1R1E1A1S1O1N1A1B3L1Y4
/ʌnˈɹiː.zən.ə.bli//ʌnˈɹiː.z.nə.bli/

adverb

In an unreasonable manner.

“He behaved unreasonably.”

Opposite
Less commonScrabble 17

Meanings

adverbunreasonably (comparative more unreasonably, superlative most unreasonably)

comparative more unreasonably · superlative most unreasonably

  1. In an unreasonable manner.

    He behaved unreasonably.

    4 more examples

    Fye, you confine your ſelfe moſt vnreaſonably: Come, you muſt go viſit the good Lady that lies in.

    c. 1608–1609 (date written), William Shakespeare, “The Tragedy of Coriolanus”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, →OCLC, [Act I, scene iii], page 4, column 2

    When I employ myself upon a paper of morality, I generally consider how I may recommend the particular virtue which I treat of, by the precepts or examples of the ancient heathens; by that means, if possible, to shame those who have greater advantages of knowing their duty, and therefore greater obligations to perform it, into a better course of life: besides that many among us are unreasonably disposed to give a fairer hearing to a pagan philosopher, than to a christian writer.

    1711 November 3, Joseph Addison, Richard Steele, “The Spectator”, in Saturday, volume 3, number 213

    When thus gentle, Bessie seemed to me the best, prettiest, kindest being in the world; and I wished most intensely that she would always be so pleasant and amiable, and never push me about, or scold, or task me unreasonably, as she was too often wont to do.

    1847 October 16, Currer Bell [pseudonym; Charlotte Brontë], chapter IV, in Jane Eyre. […], volume I, London: Smith, Elder, and Co., […], →OCLC, page 45

    Until then, the Sunak administration remains a study in ineffectuality on multiple fronts, leading Goldsmith to cite, not unreasonably, “a kind of paralysis”.

    2023 June 30, Marina Hyde, “The tide is coming in fast on Rishi Sunak – and it’s full of sewage”, in The Guardian
  2. To an unreasonable degree.

    The team was given an unreasonably short amount of time to put together a presentation.

    3 more examples

    1737, Jonathan Swift, Letter to Alderman Barber dated 30 March, 1737, in The Works of Dr Jonathan Swift, Edinburgh: J. Balfour, 1766, Volume 11, p. 126, Thus bishops, deans, and chapters, as well as other corporations, seldom or never let their lands even so high as half the value; and when they raise those rents which are unreasonably low, it is by degrees.

    The Senate of the United States has been both extravagantly praised and unreasonably disparaged, according to the predisposition and temper of its various critics.

    1885, Woodrow Wilson, chapter 4, in Congressional Government: A Study in American Politics, Boston and New York: Houghton Mifflin, page 193

    I get unreasonably angry with John sometimes. I’m sure I never used to be so sensitive. I think it is due to this nervous condition.

    1892, Charlotte Perkins Gilman, The Yellow Wallpaper

Synonyms & antonyms

adverbnot in a reasonable or intelligent manner

Opposite

adverbto a degree that exceeds the bounds of reason or moderation

Opposite
Also see

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Late Latinirratiōnābiliter
  2. Middle Englishunresonably
  3. Englishunreasonably

From Middle English unresonably, equivalent to unreasonable + -ly, after resonably (whence reasonably) and (originally) Late Latin irratiōnābiliter.

Full word history & related roots →

Translations

French déraisonnablement
  • déraisonnablementin an unreasonable manner
Portuguese irracionalmente
  • irracionalmentein an unreasonable manner
Swedish orimligt, orealistiskt
  • orimligtto an unreasonable degree
  • orealistisktto an unreasonable degree
Cite this entry
APA

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

MLA

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

Chicago

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

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