- The definition of infirm is being sickly or weak, or not strong in will or character.
- An old and sickly person is an example of someone who is infirm.
- When you cannot make or stick to a decision and are weak-willed, this is an example of being infirm.
A doctor assists an infirm man.Licensed from iStockPhoto
- not firm or strong physically; weak; feeble, as from old age
- not firm in mind or purpose; not resolute; vacillating
- not stable, firm, or sound; frail; shaky, as a structure
- not secure or valid: an infirm title to property
Origin: Middle English from Classical Latin infirmus
Used by arrangement with John Wiley & Sons, Inc.
- Weak in body, especially from old age or disease; feeble. See Synonyms at weak.
- Lacking firmness of will, character, or purpose; irresolute.
- Not strong or stable; shaky: an infirm support.
Origin: Middle English infirme, from Old French, from Latin īnfirmus : in-, not; see in-1 + firmus, strong, firm; see dher- in Indo-European roots.
- in·firmˈly adverb
infirm - Medical Definition