pur ‧ ist /ˈpjʊərəst, ˈpjʊərɪst $ ˈpjʊr-/ BrE AmE noun [countable]
[ Word Family: noun : ↑ purification , ↑ purist , ↑ purity ≠ ↑ impurity , ↑ purifier ; verb : ↑ purify ; adverb : ↑ purely ; adjective : ↑ pure ≠ ↑ impure ]
someone who believes that something should be done in the correct or traditional way, especially in the areas of art, sport, music, and language:
The purists won’t like it, but opera on TV certainly brings in the audiences.
Architects with purist views were suspicious of his work.