adjective in·firm \in-ˈfərm\

: having a condition of weakness or illness that usually lasts for a long time and is caused especially by old age

Full Definition of INFIRM

:  of poor or deteriorated vitality; especially :  feeble from age
:  weak of mind, will, or character :  irresolute, vacillating
:  not solid or stable :  insecure
in·firm·ly adverb

Examples of INFIRM

  1. The clinic provides free care for elderly and infirm people who lack health insurance.
  2. <the elderly and infirm have to be especially careful during the winter months>

Origin of INFIRM

Middle English, from Latin infirmus, from in- + firmus firm
First Known Use: 14th century

Other Medicine Terms

analgesia, angina, diabetes, hepatitis, homeopathy, logorrhea, palliate, pandemic


adjective in·firm \in-ˈfərm\   (Medical Dictionary)

Medical Definition of INFIRM

:  of poor or deteriorated vitality; especially :  feeble from age


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May 24, 2015
erudite Hear it
learned or pedantic
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