reflectionist
/rɪˈflɛkʃ(ə)nɪst/ /rɪˈflɛkʃənɪst/adjective
Chiefly in Marxist theory: designating the belief that ideas, art, literature, etc., are reflections of reality; having or characterized by such a belief.
Origin
Mid 19th century (in an earlier sense). From reflection + -ist.