WordReference Random House Learner's Dictionary of American English © 2017
in•firm /ɪnˈfɜrm/USA pronunciation
adj. WordReference Random House Unabridged Dictionary of American English © 2017
n. the infirm, [plural; used with a plural verb]
- feeble or weak because of age:The old man was too infirm to walk.
- infirm people:care of the infirm.
(in fûrm′),USA pronunciation adj.
- feeble or weak in body or health, esp. because of age;
- unsteadfast, faltering, or irresolute, as persons or the mind;
vacillating:infirm of purpose.
- not firm, solid, or strong:an infirm support.
- unsound or invalid, as an argument or a property title.
- to invalidate.
- Latin infirmus. See in-3, firm1
- Middle English infirme 1325–75
- 1, 3.See corresponding entry in Unabridged
- 4.See corresponding entry in Unabridged weak.
- 2.See corresponding entry in Unabridged wavering, indecisive.
- 3.See corresponding entry in Unabridged rickety, tottering, shaky, unsteady.
- 1, 2.See corresponding entry in Unabridged
- 3.See corresponding entry in Unabridged strong.
Collins Concise English Dictionary © HarperCollins Publishers::
infirm /ɪnˈfɜːm/ adj
inˈfirmly adv inˈfirmness n
- weak in health or body, esp from old age
- (as collective noun; preceded by the): the infirm
- lacking moral certainty; indecisive or irresolute
- not stable, sound, or secure: an infirm structure, an infirm claim
- (of a law, custom, etc) lacking legal force; invalid
'infirm' also found in these entries: