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unreasonable

[uhn-ree-zuh-nuh-buh l, -reez-nuh-] /ʌnˈri zə nə bəl, -ˈriz nə-/
adjective
1.
not reasonable or rational; acting at variance with or contrary to reason; not guided by reason or sound judgment; irrational:
an unreasonable person.
2.
not in accordance with practical realities, as attitude or behavior; inappropriate:
His Bohemianism was an unreasonable way of life for one so rich.
3.
excessive, immoderate, or exorbitant; unconscionable:
an unreasonable price; unreasonable demands.
4.
not having the faculty of reason.
Origin
1300-1350
1300-50; Middle English unresonabel. See un-1, reasonable
Related forms
unreasonableness, noun
unreasonably, adverb
Synonyms
1, 2. senseless, foolish, silly. 2. preposterous, absurd, stupid, nonsensical. 3. extravagant.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for unreasonable
  • He often wished she would ask for something unreasonable and extravagant.
  • These are not unreasonable notions, but there is also no positive evidence to suggest that they are correct, either.
  • Industry advocates argue that this is not an unreasonable amount.
  • There is a time to jest and a time when jests are unreasonable.
  • The supposition is too grossly unreasonable, too monstrous, to require labored refutation.
  • And in the confidence of renewed day it almost seemed to me that my fear had been unreasonable.
  • It is a good part of sagacity to have known the foolish desires of the crowd and their unreasonable notions.
  • But they are also of such a kind that it cannot be said that it is unreasonable to believe them.
  • It is not unreasonable to suppose that imagination in such cases often colours highly without a premeditated design of falsehood.
  • So that, if you let them know what full powers your commission gives you, they will urge and press you to unreasonable conditions.
British Dictionary definitions for unreasonable

unreasonable

/ʌnˈriːznəbəl/
adjective
1.
immoderate; excessive: unreasonable demands
2.
refusing to listen to reason
3.
lacking reason or judgment
Derived Forms
unreasonableness, noun
unreasonably, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for unreasonable
adj.

mid-14c., from un- (1) "not" + reasonable. Related: Unreasonably.

Online Etymology Dictionary, © 2010 Douglas Harper
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