Infirmity defined as physical frailty or weakness informing legal understanding of capacity and care considerations. The term infirm denotes physical weakness, frailty, or debility often linked to advanced age or illness. Dictionary definitions emphasize diminished physical capacity or feebleness, and legal materials use the concept as a descriptive criterion pertinent to assessments of capacity, vulnerability, and care needs, as reflected in references such as Radhika Kapoor v. State and Ors.