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[ree-zuh nd] /ˈri zənd/
based on reason:
a carefully reasoned decision.
containing reasons:
a long, reasoned reply.
Origin of reasoned
First recorded in 1675-85; reason + -ed2
Related forms
reasonedly, adverb
unreasoned, adjective
well-reasoned, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for well-reasoned
Contemporary Examples
Historical Examples
  • His pages on these subjects are vigorous, well-reasoned, and pointed in their satire.

  • He is extremely liberal, but of a wise and well-reasoned liberality.

    The Greville Memoirs (Third Part) Volume I (of II) Charles Cavendish Fulke Greville
  • Now and then she put in a word of discriminating approval, now and then a word of well-reasoned dissent.

  • It may, perhaps, need a little softening, but it is an accurate and well-reasoned memorial.

  • We must bear in mind the well-reasoned hostility of the Church to—or at least hesitation about—the revival of learning.

    The Age of Erasmus P. S. Allen
  • It was about as unexpected as any act in an extremely unconventional career, and, as usual, he had a well-reasoned purpose.

    Rebel Raider H. Beam Piper
  • By the way, was there not some well-reasoned psychological explanation of this physical condition?

    Sinister Street, vol. 2 Compton Mackenzie
  • The thought begot a sense of caution, of reserve, of well-reasoned determination not to reveal his secret to anybody.

    The King of Diamonds Louis Tracy
British Dictionary definitions for well-reasoned


adjective (well reasoned when postpositive)
logically argued with skill or care


well thought-out or well presented: a reasoned explanation
Derived Forms
reasonedly, 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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