repressionist
/rɪˈprɛʃ(ə)nɪst/ /rɪˈprɛʃənɪst/noun
A person who advocates or practises repression or repressive measures, especially against a particular racial or social group.
adjective
That advocates or practises repression; Designating or characteristic of a repressionist.
Origin
Mid 19th century; earliest use found in British Controversialist. From repression + -ist.