Which term describes an individual who is weak and cannot care for many of their personal needs?

The term that describes an individual who is weak and cannot care for many of their personal needs is accurately defined as "debilitated." This term specifically refers to a state of physical weakness or incapacity, often resulting from illness, injury, or a prolonged health condition. Individuals who are debilitated typically face significant challenges in performing daily activities and require assistance with their personal care.

In contrast, "chronic" refers to conditions that are long-lasting or recurrent, but it doesn't inherently convey the idea of weakness or the inability to care for oneself. "Disabled" is a broader term that can encompass a range of conditions, including those that may not directly lead to weakness, while "impaired" typically refers to the loss of function or ability, which can vary in severity and doesn’t specifically indicate overall weakness. Thus, "debilitated" is the most precise term for describing weakness and dependence in personal care.