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[ob-stuh-nuh-see] /ˈɒb stə nə si/
noun, plural obstinacies for 5.
the quality or state of being obstinate; stubbornness.
unyielding or stubborn adherence to one's purpose, opinion, etc.
stubborn persistence:
The garrison fought on with incredible obstinacy.
resistance to cure, relief, or treatment, as a disease.
an instance of being obstinate; an obstinate act, viewpoint, etc.
Origin of obstinacy
1350-1400; Middle English < Medieval Latin obstinātia, derivative of Latin obstinātus (see obstinate); see -cy Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for obstinacy
Contemporary Examples
Historical Examples
  • His chief defect is his obstinacy; when he has once made up his mind there is no changing it.

    The Memoires of Casanova, Complete Jacques Casanova de Seingalt
  • I told you obstinacy was no part of my character, did I not?

  • She has an obstinacy and a perseverance in sticking at you that drive you almost wild, but make you learn "lots" in the end.

  • Mrs Varden was but a woman, and had her share of vanity, obstinacy, and love of power.

    Barnaby Rudge Charles Dickens
  • He quickly repented his obstinacy, for no sooner were they in than the crocodiles seized nine of them and dragged them down.

    The Fugitives R.M. Ballantyne
  • It was not a feeling of antagonism, exactly, but more of defiance, of obstinacy.

    The Portygee Joseph Crosby Lincoln
  • He had no foregone conclusions, no arbitrary predeterminations, no obstinacy, and no egoism.

    The God-Idea of the Ancients Eliza Burt Gamble
British Dictionary definitions for obstinacy


noun (pl) -cies
the state or quality of being obstinate
an obstinate act, attitude, etc
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 obstinacy

late 14c., from Medieval Latin obstinatia, from obstinatus (see obstinate).

Online Etymology Dictionary, © 2010 Douglas Harper
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