There are many different synonyms that can be used to describe the color black in an adjective form. Some common options include terms like "ebony", "jet", "pitch", "sable", and "charcoal". These words all evoke different visual and emotional associations, and can help to create a more nuanced and varied description of the color black in writing or speech. Other potential synonyms could include terms like "inky", "shadowy", "obsidian", or "glossy" depending on the context. Whether you are describing a piece of clothing, a piece of art, or the darkness of night, there are plenty of different options to choose from when seeking an adjective for black.