Antonyms of adj coastal

1 of 2 senses of coastal

Sense 2
coastal (vs. inland) -- (located on or near or bordering on a coast; "coastal marshes"; "coastal waters"; "the Atlantic coastal plain")

inland (vs. coastal) -- (situated away from an area's coast or border)
        => interior, midland, upcountry -- (of or coming from the middle of a region or country; "upcountry districts")
        => landlocked -- (surrounded entirely or almost entirely by land; "a landlocked country")

Similarity of adj coastal

2 senses of coastal

Sense 1
coastal -- (of or relating to a coast; "coastal erosion")

Sense 2
coastal (vs. inland) -- (located on or near or bordering on a coast; "coastal marshes"; "coastal waters"; "the Atlantic coastal plain")
       => coastwise -- (along or following a coast; "coastal shipping"; "coastwise winds contributed to the storm")
       => inshore -- (close to a shore; "inshore fisheries")
       => maritime -- (bordering on or living or characteristic of those near the sea; "a maritime province"; "maritime farmers"; "maritime cultures")
       => seaward -- (directed or situated away from inland regions and toward the sea or coast; "from the hill he took a seaward course"; "on the seaward side of the road")