1. Cosmopolitan: This is the most common antonym, suggesting a worldly and sophisticated outlook, free from narrow-mindedness and limited experience.
2. Sophisticated: This emphasizes refinement, elegance, and a refined taste.
3. Broad-minded: This refers to being open to new ideas and experiences, accepting diversity, and not being prejudiced.
4. Metropolitan: This refers to a city environment, often associated with cosmopolitanism.
5. International: This emphasizes a global perspective and understanding of different cultures.
6. Urban: This is simply the opposite of rural, referring to a city environment.
The best opposite for "provincial" will depend on the context and the specific meaning you want to convey.