Epitome: A person or thing that is a perfect example of a particular quality or type
Recant: Say that one no longer holds an opinion or belief, esp. one considered heretical
Futile: Incapable of producing any useful result; pointless
Retrospective: Looking back on or dealing with past events or situations
Sacrosanct: (esp. of a principle, place, or routine) regarded as too important or valuable to be interfered with
Impeccable: (of behavior, performance, or appearance) in accordance with the highest standards of propriety; faultless
Scapegoat: A person who is unfairly blamed for something that others have done