A chasm in the rocks can be described using a variety of synonyms. These include canyon, gorge, ravine, fissure or crevice. All of these words convey the idea of a deep and narrow gap in the rock formations. Other synonyms include abyss, deep hollow, gulch, and defile. Each of these words emphasizes the depth and extent of the chasm, suggesting that it is a significant feature in the landscape. Whether used in literature, poetry, or general descriptions of natural scenery, these synonyms offer a range of options for expressing the rugged beauty and power of a chasm in the rocks.