1. Words, phrases, or expressions that are characteristic of a particular province or region rather than standard or national language.
Usage: Usually plural; refers to regional linguistic features
2. Narrow-minded or unsophisticated attitudes, behaviors, or perspectives characteristic of people from rural or provincial areas.
Usage: Often used critically or pejoratively

Examples

• The linguist documented several provincialisms unique to the rural dialect.
• Words like 'y'all' and 'ain't' are considered provincialisms in American English.
• His provincialisms and resistance to new ideas made him unpopular in the city.
• The novel's characters spoke with provincialisms that reflected their small-town origins.
• She worked hard to eliminate provincialisms from her speech after moving to the capital.
• The author criticized the provincialisms of the local government.
• Regional provincialisms can make communication difficult between different areas of the country.