Definition - What does Incompetent mean?
Incompetent is a term which refers to a person who is unable to properly manage or look after his or her affairs. This can be because of mental disorders like psychosis, low or deteriorating IQ, etc. Being incompetent sometimes also include physical illness or disability.
Justipedia explains Incompetent
A person who is incompetent may also require a conservator or a guardian to look after his or her affairs. This is usually sorted out by the court.