infirm
UK /ɪnˈfɜːm/ · US /ɪnˈfɜɹm/ adjective, verb
Forms infirmer infirmest infirms infirming infirmed
- adjective Weak or ill, not in good health. “He was infirm of body but still keen of mind, and though it looked like he couldn't walk across the room, he crushed me in debate.”
- adjective Irresolute; weak of mind or will.
- adjective Frail; unstable; insecure.
- verb To contradict, to provide proof that something is not. “The thought is that you see an episode of observation, experiment, or reasoning as confirming or infirming a hypothesis depending on whether the probability of it being correct increases or decreases during the episode.”
Synonyms
crank ill sick unwell disconfirm decrepit debile feeble rickety sapless weak weakly
Antonyms
Etymology
* The noun is from Middle English infirme, from Latin infirmus (“weak, feeble”).
* The verb is from Latin īnfirmāre, from īnfirmus (“sick, weak, infirm”) + -ō.
Webster’s 1913
- adjective Not firm or sound; weak; feeble; as, an infirm body; an infirm constitution.
- adjective Weak of mind or will; irresolute; vacillating. "An infirm judgment." Burke.
- verb To weaken; to enfeeble. [Obs.] Sir W. Raleigh.
Etymology [L.infirmus: cf.F.infirme. See In- not, and Firm, a.]
Etymology [L. infirmare : cf. F.infirmer.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “infirm”, CC BY-SA 4.0. Details