English

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Etymology

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From Middle English unresonable; equivalent to un- +‎ reason +‎ -able.

Pronunciation

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  • IPA(key): /ʌnˈɹiːz(ə)nəbl̩/
  • Audio (UK):(file)
  • Hyphenation: un‧rea‧son‧a‧ble

Adjective

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unreasonable (comparative more unreasonable, superlative most unreasonable)

  1. Without the ability to reason; unreasoning.
    • c. 1591–1595 (date written), William Shakespeare, “The Tragedie of Romeo and Ivliet”, in Mr. William Shakespeares Comedies, Histories, & Tragedies [] (First Folio), London: [] Isaac Iaggard, and Ed[ward] Blount, published 1623, →OCLC, [Act III, scene iii]:
      Hold thy desperate hand:
      Art thou a man? thy form cries out thou art:
      Thy tears are womanish; thy wild acts denote
      The unreasonable fury of a beast:
      Unseemly woman in a seeming man!
  2. Not reasonable; going beyond what could be expected or asked for.
    Antonym: reasonable

Derived terms

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Translations

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