Outback/ˈaʊtbæk/ Definition 1 of 4Pro Tip 1/3Australia-specific Use 'outback' to describe regions unique to the Australian interior, not other countries. The Outback is quintessentially Australian. Pro Tip 2/3Rugged Terrain Emphasizes tough landscape, so avoid using for gentle countryside. Driving in the outback requires a sturdy vehicle. Pro Tip 3/3Sparse Population Refers to areas with few people, not bustling towns or cities. The outback has communities, but they're spread out.