What does "interplanetary" mean?

Existing or occurring between planets.

Interplanetary

Q: What is a synonym for "interplanetary"?

Common synonyms include: anagalactic, asteroidal, astral, astrologic, astrologistic, astrologous.

adj

adj ·6 syllables ·Uncommon ·Advanced level

Definitions

Adjective

1
Existing or occurring between planets. not-comparable
"Humans are just beginning to explore interplanetary travel."

Adjective

1
between or among planets wordnet

Synonyms

All synonyms

anagalactic asteroidal astral astrologic astrologistic astrologous

Example

More examples

"Interplanetary space is hardly tranquil. High-energy charged particles from the Sun, as well as from beyond our solar system, constantly whizz by. These can damage satellites and endanger astronaut health."

Etymology

From inter- + planetary.

More for "interplanetary"

Synonyms Sentences Pronunciation Translate

Next best steps

Find stronger synonyms See usage examples Check pronunciation Browse writing guides

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.