Transpolar refers to something that happens or exists across or beyond the poles. When trying to find synonyms for transpolar, we can go for words like polar, extreme, remote, far-reaching, cross-polar, and longitudinal. These words are related to the idea of something that reaches across the poles, or maybe something that is extreme and far-reaching. In terms of geography, there may be terms like circumpolar, trans-Arctic, trans-Antarctic, or high-latitude which are all synonyms for transpolar. In general, synonyms for transpolar revolve around the ideas of remoteness, distance and of something that transcends the limits of the poles.