Aphthartodocetism – http://orthodoxwiki.org/Aphthartodocetism

Aphthartodocetism (Greek ἄφθαρτος aphthartos “incorruptible” + δόκησις dokisis “[mere] appearance”) also known as Julianism, is a heresy formulated by the non-Chalcedonian bishop Julian of Halicarnassus in the 6th century. It is a form of Monophysitism that argues Christ’s body was always impassible, a doctrine which Julian believed was necessary for Christ’s suffering and death to have been voluntary. Julian’s Aphthartodocetist Christology forced him to reject St. Cyril’s teaching[1] that Christ’s body changed after the Resurrection.[2] This heresy was opposed by St. Eutychius of Constantinoplecitation needed and Severus of Antioch.