Incompetency

The lack of ability, knowledge, legal qualification, or fitness to discharge a required duty or professional obligation.

The term incompetency has several meanings in the law. When it is used to describe the mental condition of a person subject to legal proceedings, it means the person is neither able to comprehend the nature and consequences of the proceedings nor adequately able to help an attorney with his defense. When it is used to describe the legal qualification of a person, it means the person does not have the legal capacity to enter a contract. When it is employed to describe a professional duty or obligation, it means that the person has demonstrated a lack of ability to perform professional functions.