| Adj. | 1. | infirm - confined to bed (by illness)ill, sick - not in good physical or mental health; "ill from the monotony of his suffering" | |
| 2. | infirm - lacking physical strength or vitality; "a feeble old woman"; "her body looked sapless"frail - physically weak; "an invalid's frail body" | |
| 3. | infirm - lacking firmness of will or character or purpose; "infirm of purpose; give me the daggers" - Shakespeareirresolute - uncertain how to act or proceed; "the committee was timid and mediocre and irresolute" | |
| 4. | infirm - weak and feeble; "I'm feeling seedy today"unhealthy - not in or exhibiting good health in body or mind; "unhealthy ulcers" | |