Immobilized is a condition added in the Second Edition base game.
Condition text: You cannot perform move actions or suffer 
to gain movement points. Discard this card or token at the end of your turn
Creatures who are immobilized cannot perform move actions or suffer to gain movement points. The condition is discarded at the end of the immobilized creature's turn. If a creature becomes immobilized during its move action, its move action immediately ends. Merriods are frequently associated with the Immobilize condition.
Immobilized Back
Immobilized Front