"Rockbound coast" is a term commonly used to describe a stretch of coastline that is rugged and dominated by steep cliffs and jagged rocks. However, there are many other synonyms that can be used to convey the same idea. Some other options might include "boulder-strewn shoreline," "stone-bound coast," "cliff-lined seashore," or "rocky promontory." These terms all capture the essence of a coastal landscape that is rough, dramatic, and full of natural beauty. Whether you're describing a famous landmark or a remote beach, choosing the right words can help to paint a vivid picture in the reader's mind.