revisionism

(rĭ-vĭzhˈə-nĭzˌəm)

1. Advocacy of the revision of an accepted, usually long-standing view, theory, or doctrine, especially a revision of historical events and movements.
2. A recurrent tendency within the Communist movement to revise Marxist theory in such a way as to provide justification for a retreat from the revolutionary to the reformist position.

Related Forms:

• re·viˈsion·ist adjective & n.