ex·tra·ter·res·tri·al
ˌek-strə-tə-ˈre-strē-əl 
-ˈres-chəl,
-ˈresh-chəl
: originating, existing, or occurring outside the earth or its atmosphere
extraterrestrial life
: a being from another world : an extraterrestrial being
Examples of extraterrestrial in a Sentence
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Jamie Harrow, PEOPLE, 16 Sep. 2025
This is because finding a world with the right atmosphere, chemistry, and geological activity is like hunting for a cosmic needle in a haystack, and this is why the search for extraterrestrial intelligence (SETI) has been such a struggle.
—Rupendra Brahambhatt, Interesting Engineering, 13 Sep. 2025
Wesley Stenzel, Entertainment Weekly, 11 Sep. 2025
The rum’s namesake, the kraken, shares some similarities with aliens and extraterrestrials.
—Jeanette Hurt, Forbes.com, 21 Aug. 2025
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Adjective
Marlowe’s second novel also features a maybe-extraterrestrial encounter.
—Jamie Harrow, PEOPLE, 16 Sep. 2025
This is because finding a world with the right atmosphere, chemistry, and geological activity is like hunting for a cosmic needle in a haystack, and this is why the search for extraterrestrial intelligence (SETI) has been such a struggle.
—Rupendra Brahambhatt, Interesting Engineering, 13 Sep. 2025
Noun
However, the actress is too afraid of the series' menacing extraterrestrials to watch the show alone.
—Wesley Stenzel, Entertainment Weekly, 11 Sep. 2025
The rum’s namesake, the kraken, shares some similarities with aliens and extraterrestrials.
—Jeanette Hurt, Forbes.com, 21 Aug. 2025
See All Example Sentences for extraterrestrial
Cite this Entry
“Extraterrestrial.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/extraterrestrial. Accessed 20 Sep. 2025.
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