Word.ws English Dictionary

Synonyms of extraterrestrial

5 similar words · 3 opposite words

Another word for extraterrestrial is alien. Other synonyms of extraterrestrial are ET, little green man, LGM and xenomorph.

Synonyms and similar words for extraterrestrial

nounA being originating from outside of the Earth's atmosphere, from space, or from another planet; an...

Opposite of extraterrestrial

nounMore antonyms

  • EarthlingAn inhabitant of Earth, as opposed to one of another planet; specifically, a sentient member of any species native to...
  • TerranAn inhabitant of Earth; an earthling, especially a human.
  • terrestrial

Meaning of extraterrestrial

  1. adjective Originating from outside of the Earth's atmosphere, from space, or from another planet; alien to Earth or its environment.
  2. noun A being originating from outside of the Earth's atmosphere, from space, or from another planet; an alien.

Full definition of extraterrestrial

extraterrestrial in other languages

Questions about synonyms of extraterrestrial

What is another word for extraterrestrial?
Extraterrestrial has 5 synonyms on Word.ws, such as alien, ET, little green man, LGM and xenomorph.
What is the opposite of extraterrestrial?
The opposite of extraterrestrial is Earthling. Other antonyms of extraterrestrial are Terran and terrestrial.
What does extraterrestrial mean?
Extraterrestrial means originating from outside of the Earth's atmosphere, from space, or from another planet; alien to Earth or its environment.

Source and license

Adapted from Wiktionary: extraterrestrial (page history and authors) and the entries of the words listed. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws grouped the synonyms and antonyms by meaning and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this page: “Synonyms of extraterrestrial.” Word.ws, https://word.ws/synonyms/extraterrestrial. Based on Wiktionary, CC BY-SA 4.0.