Which term best describes a disabled person under guardianship?

The term that best describes a disabled person under guardianship is "ward." In the context of guardianship, a ward is an individual who has been deemed unable to manage their personal affairs due to a disability, and thus has a guardian appointed to act on their behalf. This legal designation acknowledges the need for protection and assistance for those who cannot fully care for themselves.

The caregiver, known as the guardian, has the responsibility to make decisions in the best interest of the ward, whether that involves personal health decisions, financial management, or other critical aspects of daily living. The relationship is fundamentally based on the guardian's duty to protect the welfare of the ward.

The other terms mentioned have different meanings and roles within the context of guardianship and fiduciary responsibilities. For instance, a beneficiary refers to someone who benefits from a trust or will, a trustee manages assets on behalf of beneficiaries but does not represent the interests of a ward, and a conservator specifically manages the financial affairs of an individual deemed unable to do so. Understanding these distinctions clarifies why "ward" is the appropriate term for a person under guardianship.