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Definition of interstellar

interstellar

/ˌɪn.tɚˈstɛl.ɚ/
in · ter · stel · lar
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interstellar Lexical Profile

interstellar Game Scores & Validity

• adjective

1

Occurring, situated, or traveling in the space between stars.

Example

"The space probe finally crossed the boundary of our solar system and entered interstellar space."

Synonyms
View all synonyms for interstellar
Antonyms
View all antonyms for interstellar

Word Nuance & Usage

'Interstellar' refers specifically to the region or travel between different star systems within a single galaxy, whereas 'interplanetary' refers to travel between planets within the same solar system and 'intergalactic' refers to the vast space between separate galaxies.

• Rhymes for interstellar

• Nearby Words

intersperse
interspersion
interstate
interstellar
intertribal
intertwine
interuniversity

Word Origin & Etymology

Coined in the early 17th century (first attested in the writings of Francis Bacon) from the Latin prefix 'inter-' (meaning 'between' or 'among') combined with 'stellaris' (meaning 'pertaining to a star', from 'stella', 'star').

Cite this Entry

Wordmom. (2026). Definition of Interstellar. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/interstellar
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