This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

adj. relating to the coast; on or near the coast, as a coastal town, a coastal breeze

adj. Of or pertaining to a coast.

Of or pertaining to a coast or shore.

adj. of or relating to a coast

adj. located on or near or bordering on a coast

"Despite excluding a “worst-case” scenario of polar ice sheet loss, researchers report that “nearly 500,000 people and $100 billion worth of property in coastal California are at risk of severe flooding from rising sea levels this century.”"

inshore    seaward    maritime    coastwise   

belted coastal plain    coastal plain    embayed coastal plain   

littoral   

bicoastal    postal   

inland    eastern    mountainous    wooded    adjacent    maritime    swampy    tropical    fertile    arid