In outer space
Interplanetary and in outer space are semantically related. In some cases you can use "Interplanetary" instead an adjective phrase "In outer space".
Interplanetary
Interplanetary adjective - Between or among planets.
Show all Definitions
Synonyms for Interplanetary
In outer space and interplanetary are semantically related. You can use "In outer space" instead an adjective "Interplanetary".
Mutual synonyms
Cite this Source
Interplanetary and In outer space. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/in_outer_space/interplanetary
In outer space & Interplanetary. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/in_outer_space/interplanetary>.
Interplanetary or In outer space. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/in_outer_space/interplanetary.