Cosmical is an adjective that refers to something related to the universe or cosmos. There are several synonyms for the word cosmical, including cosmic, astronomical, celestial, space-related, stellar, galactic, universal, otherworldly, extraterrestrial, and heavenly. These words describe all things that pertain to space, stars, galaxies, and the universe beyond Earth. They can be used to describe scientific phenomena, such as cosmological theories and astronomical observations, or to express awe and wonder at the beauty and vastness of the universe. Whether discussing science or poetry, using one of these synonyms for cosmical can add depth and meaning to the conversation.