scrupulous or exaggerated observance of or insistence on traditional rules or structures, especially in language or style
Mrs Grundy's name is now synonymous with narrow linguistic purism
an early 20th-century artistic style and movement founded by Le Corbusier and the French painter Amédée Ozenfant (1886–1966) and emphasizing purity of geometric form. It arose out of a rejection of cubism and was characterized by a return to the representation of recognizable objects