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infirmity

American  
[in-fur-mi-tee] / ɪnˈfɜr mɪ ti /

noun

infirmities plural
  1. a physical weakness or ailment.

    the infirmities of age.

  2. quality or state of being infirm; lack of strength.

  3. a moral weakness or failing.

    Synonyms:
    fault, defect, flaw

infirmity British  
/ ɪnˈfɜːmɪtɪ /

noun

  1. the state or quality of being infirm

  2. physical weakness or debility; frailty

  3. 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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Nouns

Etymology

Origin of infirmity

1325–75; Middle English infirmite < Latin infirmitās. See infirm, -ity

Explanation

A weakness or disability, especially due to old age, is called an infirmity. The noun infirmity, when used alone, is generally understood to mean physical frailty. If you want to imply mental weakness or some other disability, then use an adjective for clarity, as in this example: "His mental infirmity was caused by an early onset of Alzheimer's disease." Don't confuse infirmity with infirmary. The latter is a place where the sick and infirm go to recover: "Because of her infirmity, she often ended up being seen by doctors at the infirmary."

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The old guard has a lock on how things run—and OK, yes, at least a few of them seem to be dealing with actual infirmity.

From Slate • Jun. 14, 2024

The family has learned, with guidance from ONEgeneration, how to understand and accommodate Saldana’s infirmity — how to resist pushing back when she’s combative or confused.

From Los Angeles Times • Sep. 23, 2023

The arrival comes two years after the zoo had to euthanize two of its older female elephants, Ambika, 72, and Shanthi, 45, because of old age and infirmity.

From Washington Post • Nov. 7, 2022

Connie Schultz, a columnist for USA Today, lashed out at critics mocking Fetterman's performance "as if they are immune from the randomness of illness and infirmity."

From Salon • Oct. 26, 2022

Pale and bruised, lean to the point of infirmity, he shambles toward the bed.

From "All the Light We Cannot See" by Anthony Doerr

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