Synonyms that are in the dictionary are marked in green. Synonyms that are not in the dictionary are marked in red.
Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
In Outside the Circles of Time (1980), Grant calls into question the whole extra-terrestrial vs trans-dimensional dichotomy, seeing outer space as a form of inner space, especially when it comes to alien beings.
Source: https://www.newdawnmagazine.com/articles/aliens-extra-terrestrial-or-trans-dimensional