an effort to change a pre-determined course
Interdiction is the effort to change the course of one's destiny. Once a character determines that his destiny is pulling him toward an undesirable fate, he tries to Interdict and thereby avoid the fate. But has he correctly identified the course of his destiny or in actuality is what he sees as Interdiction is just another pre-destined step toward his fate?
syn. altering the future, interfering with the predetermined, hindering the inevitable, escaping the predestined