1. remote areas of a country away from the coast or the banks of major rivers; backcountry
Usage: usually plural
2. an area lying beyond what is visible or known; remote or less developed regions
Usage: usually plural; often figurative

Examples

• The explorers ventured into the hinterlands beyond the mountain range.
• Many small towns in the hinterlands lack reliable internet access.
• She grew up in the hinterlands, far from any major city.
• The company struggled to deliver goods to customers in the hinterlands.
• Tourism rarely reaches the hinterlands of this remote country.
• The hinterlands remained largely unexplored until the 20th century.