All frontier antonyms
fron·tier
F f adjective frontier
- backland — undeveloped land behind a developed property
- upcountry — of, relating to, residing in, or situated in the interior of a region or country; inland.
- midland — a city in W Texas.
- back country — The back country is an area that is a long way from any city and has very few people living in it.
- inland — pertaining to or situated in the interior part of a country or region: inland cities.
- heartland — the part of a region considered essential to the viability and survival of the whole, especially a central land area relatively invulnerable to attack and capable of economic and political self-sufficiency.
noun frontier
- centre — A centre is a building where people have meetings, take part in a particular activity, or get help of some kind.
- inside — on the inner side or part of; within: inside the circle; inside the envelope.
- interior — being within; inside of anything; internal; inner; further toward a center: the interior rooms of a house.
- middle — equally distant from the extremes or outer limits; central: the middle point of a line; the middle singer in a trio.
- metropolis — any large, busy city.
- center — a point equally distant from all points on the circumference of a circle or surface of a sphere