ultra-nationalist       
 noun [ C ]  mainly disapproving (also ultranationalist) uk/ˌʌl.trəˈnæʃ.ən.əl.ɪst/ /ˌʌl.trəˈnæʃ.nə.lɪst/ us/ˌʌl.trəˈnæʃ.ən.əl.ɪst/ /ˌʌl.trəˈnæʃ.nə.lɪst/
 极端民族主义者
a person who has an extreme belief in nationalism (= a very great love for your country and a belief that it is better than others)
  He is one of a group of ultra-nationalists who demand stricter controls on immigration.  他是一群要求更严格控制移民的极端民族主义者的成员。 
 Changes in governmental policy have led to a surge of violence by ultranationalists who demand a return to the country they once knew. 政府政策的变化导致极端民族主义者的暴力行为激增,他们要求恢复他们曾经熟悉的国情。 
 - More examples
 - Ultra-nationalists in the country have been associated with recent violence against writers, artists and journalists who questioned their motives.
 - The new president is an ultra-nationalist who condemns those who speak against their country.
 
ultra-nationalist       
adjective (also ultranationalist) uk/ˌʌl.trəˈnæʃ.ən.əl.ɪst/ /ˌʌl.trəˈnæʃ.nə.lɪst/ us/ˌʌl.trəˈnæʃ.ən.əl.ɪst/ /ˌʌl.trəˈnæʃ.nə.lɪst/
 极端民族主义的
having an extreme belief in nationalism (= a very great love for your country and a belief that it is better than others)
  The newspaper has been the target of ultranationalist protests. 该报一直是极端民族主义抗议的目标。 
 Many ultra-nationalist members of the party did not want the country to sign onto the international accord.  该党的许多极端民族主义成员不希望该国签署国际协议。