Antonyms of adj landlocked

1 sense of landlocked

Sense 1
landlocked -- (surrounded entirely or almost entirely by land; "a landlocked country")

INDIRECT (VIA inland) -> coastal -- (located on or near or bordering on a coast; "coastal marshes"; "coastal waters"; "the Atlantic coastal plain")

Similarity of adj landlocked

1 sense of landlocked

Sense 1
landlocked -- (surrounded entirely or almost entirely by land; "a landlocked country")
       => inland (vs. coastal) -- (situated away from an area's coast or border)