ADJ-GRADED
（尤指政治上）狂暴的，偏激的，固执的
You can use rabid to describe someone who has very strong and unreasonable opinions or beliefs about a subject, especially in politics.
例句
The party has distanced itself from the more rabid nationalist groups in the country.
此党派与国内较偏激的民族主义团体保持了距离。