absolutists
n. B2 Upper Intermediate ab·so·lutists
n. people who believe in only one correct way to do things and will not change their minds. They often disagree with others who think there are many possible answers.
n. individuals who adhere strictly to a single principle or set of rules, refusing to compromise or accept alternative viewpoints. Often used to describe those who demand total obedience to a specific ideology or law.
The absolutists refused to sign the new contract.
In the debate about the new law, the absolutists argued that any change would be a betrayal of the original values.
While the committee sought a middle ground, the absolutists on the board insisted that the policy must be implemented exactly as written, without any exceptions.