Definition of "immobility"

Common to all Regions were frozen points, which were troublesome not only because of immobility, but because failure to close prevented operation of detector circuits.

1962 March, “The New Year Freeze-up on British Railways”, in Modern Railways, page 158

See how he still covers his face with his hands when he sees me and his immobility and fixed stare are often evident.

2003, Alessandra Piontelli, From Fetus to Child: An Observational and Psychoanalytic Study, page 87