extraterrestrial

adjective
UK: /ˌekstrətəˈrestriəl/
US: /ˌekstrətəˈrestriəl/

  1. Coming from or existing outside the Earth and its atmosphere.

    1. Is there any extraterrestrial life on Mars?
    2. The scientists searched for extraterrestrial signals using powerful radio telescopes.

Synonyms

alien unearthly outer space
extraterrestrial noun

  1. A creature or being that comes from outside the Earth.

    1. The film features a friendly extraterrestrial.
    2. Many people believe that extraterrestrials have visited our planet in the past.

  2. Relating to things that are not from Earth.

    1. He hopes to find extraterrestrial in the space.
    2. The quest for extraterrestrial intelligence motivates many scientific projects.

Frequently Asked Questions

The phonetic transcription of "extraterrestrial" is /ˌekstrətəˈrestriəl/ in British English and /ˌekstrətəˈrestriəl/ in American English. Click the 🔊 button to hear both pronunciations.

Synonyms for "extraterrestrial": alien, unearthly, outer space.

Example usage of "extraterrestrial": "Is there any extraterrestrial life on Mars?". More examples on the page.