Provincialist

Walker's Pronouncing Dictionary is an excellent work, but perhaps it will be of service only to such men as I have alluded to before: the provincialist will mis-pronounce even his leading sounds.

Source: wiktionary

While if they attempt the impossible feat of placing before our eyes the every-day life of Shakespeare and his contemporaries, they make them speak with the accent of the educated nineteenth-century Londoner; instead of showing us, orthoepically, that their speech was akin to that of the modern Irish provincialist, and akin also to that of the existing provincialist in the district delineated —whether Warwickshire or Middlesex.

Source: wiktionary

As one newspaper in Civil Croatia reported in 1866: Our provincial peasant is some kind of strange, dreadful creature that frightens the krajišnik peasant to his bones; so that even if you were to lay all of the provincialist's property and wealth at the krajišnik's feet, if along with that you also mention the name peasant he will give it all up and flee in a panic; only to avoid this supposed seven-headed dragon that is the miserable peasant.

Source: wiktionary

When I termed him a provincialist the hon. and learned member said he was proud of it. The hon. member says I am a provincialist if I will not consent to a federation which will involve an undue sacrifice of the interests of New South Wales.

Source: wiktionary