- 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.
- 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 of infirmMiddle English ; from Classical Latin infirmus
- Weak in body or mind, especially from old age or disease. See Synonyms at weak.
- Not strong or stable; shaky: an infirm foundation.
- Archaic Lacking firmness of will, character, or purpose; irresolute.
Origin of infirmMiddle English infirme, from Old French, from Latin īnfirmus : in-, not; see in–1 + firmus, strong, firm; see dher- in Indo-European roots.
(comparative infirmer, superlative infirmest)
(third-person singular simple present infirms, present participle infirming, simple past and past participle infirmed)