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

  • adj. Not governed by reason: an unreasonable attitude.
  • adj. Exceeding reasonable limits; immoderate: unreasonable demands. See Synonyms at excessive.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. not reasonable

from the GNU version of the Collaborative International Dictionary of English

  • adj. Not reasonable; irrational; immoderate; exorbitant.

from The Century Dictionary and Cyclopedia

  • Not reasonable or agreeable to reason; irrational.
  • Exceeding the bounds of reason; beyond what is reasonable or moderate; exorbitant; immoderate: as, an unreasonable price.
  • Not endowed with reason; irrational.
  • Not listening to or acting according to reason; not guided by reason; not influenced by reason.
  • Inconvenient.
  • Synonyms Absurd, Silly, Foolish, etc. (see absurd), obstinate, wrong-headed, extravagant, unfair, unjust, extortionate.

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

  • adj. not reasonable; not showing good judgment
  • adj. beyond normal limits


Sorry, no etymologies found.


  • Because the term "unreasonable" is a little vague, the decision about these rate increases is regulated at the state level.

    Linda Bergthold: Health Independence Day

  • Democrat had proposed a 25 percent tax on what they called unreasonable profits raked in by the five biggest U.S. oil companies.

    CNN Transcript Jun 11, 2008

  • And that is this tax on what they call unreasonable profits from the oil companies.

    CNN Transcript Jun 10, 2008

  • His ex-wife Sadie Frost divorced Law in 2003 after six years of marriage for what she called unreasonable behavior.

    CNN Transcript Jul 18, 2005

  • She was ashamed afterward of what she called her unreasonable behavior.

    Molly Brown's Senior Days

  • The administration used its rate review authority once before, on a smaller scale, in an effort to stop what it described as an unreasonable rate increase of 12 percent by the Everence Insurance Company in Pennsylvania.

    NYT > Home Page

  • University of Minnesota President Robert Bruininks said the school will definitely appeal what he calls the unreasonable ruling on the lawsuit in which basketball coach rss feed

  • The girls' lawyers argued that the district was obligated to justify the extra punishment, which they called unreasonable and unnecessarily harmful to the girls.

    NYT > Home Page

  • So an Executive Order freezing premium increases until insurers have justified increases deemed unreasonable is necessary to implement the express requirements of the federal law.

    Jamie Court: Time for Obama to Get Tough on Insurers With Rate Freeze Via Executive Order

  • Better hope that there's nothin 'unreasonable in them!

    Boing Boing


Log in or sign up to get involved in the conversation. It's quick and easy.

  • April 8, 2007