coastal
adj.adj. located on or near the edge of the land where it meets the sea. You use this to describe towns, roads, or animals that live by the ocean.
adj. pertaining to, situated on, or bordering the land along a sea or ocean. Frequently used in geographical and environmental contexts to describe regions or ecosystems.
We spent our summer holiday in a small coastal town.
The government is investing in new coastal defenses to protect homes from rising sea levels and erosion.
The coastal ecosystem supports a diverse range of species that have adapted to the constant cycle of the tides and varying levels of salinity.
From coast + -al. Piecewise doublet of costal.
Typically precedes the noun it modifies; non-gradable in a strictly geographical sense.