Find Synonyms

extraterrestrial Synonyms

Another word for extraterrestrial

Choosing another word for extraterrestrial depends on context, so the synonyms and similar words below are separated across 2 exact definitions and ranked by match strength.
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• adjective (Context 1)

Originating, existing, or occurring outside the Earth or its atmosphere.

Usage Example

"Astronomers use powerful radio telescopes to search the cosmos for signs of alien life."

Strongest
alien
Strong
exobiological
otherworldly
unearthly
Weak
cosmic

• noun (Context 2)

A hypothetical or fictional being originating from a planet or celestial body other than Earth.

Usage Example

"The classic science fiction film tells the story of a friendly alien who becomes stranded on Earth."

Strongest
alien
Strong
martian
Weak
spaceman

Opposites of extraterrestrial

The opposite of extraterrestrial shifts depending on context. Common opposites include:

terrestrial
earthling
earthly
terran
earthbound
tellurian
sublunary
See all opposites of extraterrestrial

• Nearby Words

extrapolate
extrapolation
extrasensory
extraterrestrial
extravagance
extravagant
extravagantly

Cite this Entry

Wordmom. (2026). Synonyms for Extraterrestrial. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/extraterrestrial
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