1. Strict adherence to traditional rules, principles, or standards, especially in language, art, or ideology
His purism in classical music made him refuse to listen to modern interpretations.
Seu purismo na música clássica o fez recusar ouvir interpretações modernas.
2. The practice of maintaining the purity of a language by rejecting foreign words or neologisms
The linguist's purism led her to advocate against the use of anglicisms in Portuguese.
O purismo da linguista a levou a defender-se contra o uso de anglicismos em português.
3. Excessive or dogmatic adherence to a particular doctrine or set of principles
The movement's purism alienated many potential supporters.
O purismo do movimento alienou muitos simpatizantes em potencial.