obstructionist

noun
1
a person who tries to prevent a parliament or committee from making progress, passing laws, etc.
کارشکن, مانع‌تراش, مخالفت‌ورز, معارض
adjective
1
trying to prevent a parliament or committee from making progress, passing laws, etc.
کارشکن, مانع‌تراش, سنگ‌انداز