Which term describes a person 18 years or older with impaired ability to care for themselves?

The term that accurately describes a person 18 years or older with an impaired ability to care for themselves is "Vulnerable Adult." This classification is significant within legal and social services contexts, as it acknowledges that such individuals may require support or protection due to their inability to manage certain life activities independently.

"Vulnerable Adult" typically refers to individuals who, due to various factors such as illness, disability, or age-related impairments, may be at risk of abuse, neglect, or exploitation. This definition encompasses a broad scope of individuals and emphasizes the need for protective services.

In contrast, other terms like "Child Victim" specifically pertain to minors, who are not included in this category. "Senior Citizen" generally refers to older individuals, often associated with certain age thresholds, but it does not explicitly address the aspect of impaired ability. "Disabled Individual" might imply some form of impairment but does not necessarily denote the broader vulnerability aspect that encompasses those who are at risk due to their inability to care for themselves. Thus, "Vulnerable Adult" is the most precise term for the defined situation.