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[in-fur-mi-tee] /ɪnˈfɜr mɪ ti/
noun, plural infirmities for 1, 3.
a physical weakness or ailment:
the infirmities of age.
quality or state of being infirm; lack of strength.
a moral weakness or failing.
Origin of infirmity
1325-75; Middle English infirmite < Latin infirmitās. See infirm, -ity
Related forms
superinfirmity, noun, plural superinfirmities.
3. flaw, defect, fault. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for infirmity
Contemporary Examples
Historical Examples
  • Your parents are now declining fast under the weight of years and infirmity.

    Imogen William Godwin
  • I have dropped off every physical burden and infirmity I had, and I am in the pink of condition.

    The Old Game Samuel G. Blythe
  • Discontent is the want of self-reliance: it is infirmity of will.

    Essays, First Series Ralph Waldo Emerson
  • The Princess was not sure of “infirmity,” but it sounded well.

    The Very Small Person Annie Hamilton Donnell
  • To tell her of all this, though he must needs do it for her safety, was like reproaching her with her infirmity.

    The Scapegoat Hall Caine
  • His step, once quick and sure, despite his infirmity, was now less certain.

    A Son of Hagar

    Sir Hall Caine
  • Yet that is the infirmity of the seneschals, who do not know their sovereign when he appears.

    Essays, Second Series Ralph Waldo Emerson
  • He viewed with a comfortable tolerance this infirmity of theirs.

    The Market-Place Harold Frederic
  • Excuse my infirmity, but there are some feelings that one never can throw off.

British Dictionary definitions for infirmity


noun (pl) -ties
the state or quality of being infirm
physical weakness or debility; frailty
a moral flaw or failing
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 infirmity

late 14c., "disease, sickness; lack of capability, weakness," from Latin infirmitatem (nominative infirmitas) "want of strength, weakness, feebleness," noun of quality from infirmus (see infirm). Cf. Middle French infirmité, Old French enfermete.

Online Etymology Dictionary, © 2010 Douglas Harper
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infirmity in Medicine

infirmity in·fir·mi·ty (ĭn-fûr'mĭ-tē)

  1. A bodily ailment or weakness, especially one brought on by old age.

  2. A condition or disease producing weakness.

  3. A failing or defect in a person's character.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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