inland
Synonym discussion
Sense: adjective/1
Inland, interior, and landlocked all describe locations away from a coast, but they differ in scope and strength. Inland is the everyday word for any place that is not near the sea — it can describe a city, a region, or a lake. Interior is broader: it can refer to the central part of any space, not just a country (e.g. 'the interior of the building'), and it sounds more formal when used for geography. Landlocked is more specific and stronger; it means completely surrounded by land with no sea access at all, and is most often used for countries (e.g. 'Paraguay is a landlocked country'). A city can be inland without being landlocked, because a country might still have a coast somewhere. In-country is a formal, logistical term meaning 'within the borders of a country' and is rarely used for geography. For everyday writing, inland is the best choice; use interior for a more formal tone, and landlocked only when no sea access exists.
Common collocations
Etymology
Inland comes from the Old English words 'in' (within) and 'land' (land, country), joined together in the medieval period to describe the part of a country that lies within its borders rather than along its coast. The adverbial use developed around the 1400s, and the adjective was in common use by the 1500s.