The term "vernacularism" refers to the use of the common or native language of a particular region or locality. Some antonyms that can be used to describe the opposite of vernacularism include formalism, standardization, and globalization. Formalism suggests the use of a more formal language in speech or writing. Standardization refers to the use of a universal or standardized language instead of a local or regional one. Globalization implies the adoption of a language or culture that is widely accepted or practiced around the world, rather than maintaining local customs and traditions. These antonyms highlight the importance of using language in a way that is appropriate for the context and audience.