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unreason

[uhn-ree-zuh n] /ʌnˈri zən/
noun
1.
inability or unwillingness to think or act rationally, reasonably, or sensibly; irrationality.
2.
lack of reason or sanity; madness; confusion; disorder; chaos:
a world torn by unreason.
verb (used with object)
3.
to upset or disrupt the reason or sanity of:
The devious plot soon unreasoned the general.
Origin of unreason
1250-1300
1250-1300; Middle English un-reson. See un-1, reason

reasoned

[ree-zuh nd] /ˈri zənd/
adjective
1.
based on reason:
a carefully reasoned decision.
2.
containing reasons:
a long, reasoned reply.
Origin
1675-85; reason + -ed2
Related forms
reasonedly, adverb
unreasoned, adjective
well-reasoned, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for unreasoned
Historical Examples
  • She could not afterward excuse herself by saying that she had been confused, excited, acting upon an unreasoned impulse.

  • Varvilliers' unreasoned philosophy did not cover this point.

    The King's Mirror Anthony Hope
  • But it is interesting to note the attitude of the pessimistic school of philosophy toward this unreasoned pessimism.

  • What is wanted is reasoned consideration, not unreasoned condemnation.

  • unreasoned instinct prompted him to put himself before the door, denying her.

    Dust of the Desert Robert Welles Ritchie
  • Again, an unreasoned philosophy, even though true, carries no guarantee of its truth.

  • This faith, often blind and unreasoned, is distinctly Western and modern.

  • It was trying; but the contempt, the unreasoned contempt, the man's appearance provoked, made it easier to bear.

    Lord Jim Joseph Conrad
  • A great cry of rage went up, and in it there was much of blood-vengeance, much of the unreasoned ferocity of the brute.

    Children of the Frost Jack London
  • She found, too, an unreasoned joy in being once more by his side, no matter under what conditions.

    The Witch of Prague F. Marion Crawford
British Dictionary definitions for unreasoned

reasoned

/ˈriːzənd/
adjective
1.
well thought-out or well presented: a reasoned explanation
Derived Forms
reasonedly, adverb

unreason

/ʌnˈriːzən/
noun
1.
irrationality or madness
2.
something that lacks or is contrary to reason
3.
lack of order; chaos
verb
4.
(transitive) to deprive of reason
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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