chthonian (adjective)

1. The fashion designer incorporated chthonian elements into his latest collection, with earth-toned colors and unique textures reminiscent of underground landscapes.

2. In Greek mythology, the chthonian deity Hades is the ruler of the underworld and the god of the dead.

3. The anime series showcased an epic battle between the protagonist and a powerful chthonian creature that emerged from beneath the earth's surface.

4. The artist's surreal painting depicted a dreamlike world filled with chthonian creatures lurking in the depths, capturing the mysteries of the underground realm.