noun in·fir·mi·ty \in-ˈfər-mə-tē\

: the quality or state of being weak or ill especially because of old age

: a disease or illness that usually lasts for a long time

plural in·fir·mi·ties

Full Definition of INFIRMITY

a :  the quality or state of being infirm
b :  the condition of being feeble :  frailty
:  a personal failing :  foible <one of the besetting infirmities of living creatures is egotism — A. J. Toynbee>

Examples of INFIRMITY

  1. In recent years she has had to reduce her schedule because of age and infirmity.
  2. the infirmities of old age

First Known Use of INFIRMITY

14th century

Other Medicine Terms

analgesia, angina, diabetes, hepatitis, homeopathy, logorrhea, palliate, pandemic
INFIRMITIES Defined for Kids


noun in·fir·mi·ty \in-ˈfər-mə-tē\
plural in·fir·mi·ties

Definition of INFIRMITY for Kids

:  the condition of being weak or frail (as from age or illness)
Medical Dictionary


noun in·fir·mi·ty \in-ˈfər-mət-ē\
plural in·fir·mi·ties

Medical Definition of INFIRMITY

:  the quality or state of being infirm; especially :  an unsound, unhealthy, or debilitated state


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