SHUT-IN

I. noun Date: 1891 a person who is confined to home, a room, or bed because of illness or incapacity, a narrow gorge-shaped part of an otherwise wide valley, available oil or gas which is not being produced from an existing well, II. adjective Date: 1909 confined to one's home or an institution by illness or incapacity, 2. secretive , brooding , tending to avoid social contact ; withdrawn