Someone who offers opposition
English: adversary, antagonist, opponent, opposer, resister
Bahasa: musuh, lawan, pembangkang, penentang, antagonis, seteru, pihak lawan
resisterEnglish
resister, adversary, antagonist, obstructer, obstructionist
Noun
Someone who systematically obstructs some action that others want to take
English: obstructionist, obstructor, obstructer, resister, thwarter