The word "Geotic" refers to things related to the earth or soil. There are many antonyms for this word, depending on the context. Some possible antonyms include "aerial," "celestial," and "extraterrestrial," which all refer to things that are not of the earth or soil. Other antonyms might include "aquatic," "marine," or "oceanic," which refer to things related to the water or ocean, as opposed to the land. Still others might include "mountainous," "rocky," or "tundra," which refer to specific types of terrain that are quite different from the earth or soil. Ultimately, the antonyms for "Geotic" will depend on the specific context in which the word is being used.