capitulationist
/kəˌpɪtjʊˈleɪʃ(ə)nɪst/ /kəˌpɪtjʊˈleɪʃənɪst/ /kəˌpɪtʃʊˈleɪʃ(ə)nɪst/Chiefly derogatory
noun
A person who advocates or inclines towards capitulationism.
adjective
Characterized by capitulationism; of or relating to capitulation.
Origin
Late 19th century. From capitulation + -ist.