adjective.
Pertaining to the material making up the edge of a seashore, as with pebbles, gravel, and sand.
adjective.
Pertaining to a beach or something beach-like.
Word Usage
"David Hagerman for The Wall Street Journal The characteristic colors of Pulau Ketam's stilt structures might be described as "beachy" -- the likes of bottle green with electric blue, salmon pink and violet, carrot orange and gold."