resister
(noun)
noun
1. someone who systematically obstructs some action that others want to take
Similar word(s): obstructer, obstructionist, obstructor, thwarter
Definition categories: person, controversialist, disputant, eristic
2. someone who offers opposition
Similar word(s): adversary, antagonist, opponent, opposer
Definition categories: person, individual, mortal, somebody, someone, soul