landlocked
Of a country, region, etc., surrounded by land (having no borders with the sea).
Example
“Switzerland is landlocked and obviously will never be a great sea power and must always trade overland.”
Other meanings
Living in freshwater, such as landlocked salmon.
Of a property or parcel, surrounded by other property and having no access to a public road.
Where this comes from
This definition is adapted from “landlocked” on Wiktionary, by its contributors, published under CC BY-SA 4.0. This page is published under the same licence.