What is an "incompetent" in New York estate law?

Definition of INCOMPETENT:

(noun) / a person judicially declared to be incapable of managing his or her own affairs1

Plain English translation: In order for a person to be considered legally incompetent, a court must make a determination that the person cannot manage himself or his affairs by reason of age, mental illness, or otherwise.

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1 New York Estates, Powers & Trusts Law § 1-2.9; SCPA § 103 (26)