infirm

/in-ˈfərm/

Middle English, from Latin infirmus, from in- + firmus firm

adjective

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

  2. weak of mind, will, or character : irresolute, vacillating

  3. not solid or stable : insecure

weak feeble frail fragile infirm decrepit mean not strong enough to endure strain, pressure, or strenuous effort. weak applies to deficiency or inferiority in strength or power of any sort. feeble suggests extreme weakness inviting pity or contempt.

noun

  1. people who are weak, ill, etc. : infirm, people

providing care for the elderly and the infirm