I believe the term you're looking for is "particularist", by analogy with moral particularism: "Moral particularism is the view that there are no moral princip

I believe the term you're looking for is "particularist", by analogy with moral particularism: "Moral particularism is the view that there are no moral principles and that moral judgement can be found only as one decides particular cases, either real or imagined." https://en.wikipedia.org/wiki/Moral_particularism https://en.wikipedia.org/wiki/Moral_particularism