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
Recent Examples on the Web
Greyson Ferguson, Travel + Leisure, 5 Nov. 2025
Starting an organized search Shklovsky and the majority of other radio astronomers pursuing the search for extraterrestrial intelligence were all located in central Russia at the time.
—Gabriela Radulescu, The Conversation, 4 Nov. 2025
Josh Honeycutt, Outdoor Life, 30 Oct. 2025
The idea that nuclear weapons have long attracted the interest of extraterrestrials is strongly ingrained within UFO mythology.
—Eric Lagatta, USA Today, 28 Oct. 2025
See All Example Sentences for extraterrestrial
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Adjective
Just as the interior of Santuário São João Bosco appears out of this world, the Catedral Metropolitana evokes an extraterrestrial awe.
—Greyson Ferguson, Travel + Leisure, 5 Nov. 2025
Starting an organized search Shklovsky and the majority of other radio astronomers pursuing the search for extraterrestrial intelligence were all located in central Russia at the time.
—Gabriela Radulescu, The Conversation, 4 Nov. 2025
Noun
The following ghosts, monsters, and extraterrestrials just may haunt your dreams.
—Josh Honeycutt, Outdoor Life, 30 Oct. 2025
The idea that nuclear weapons have long attracted the interest of extraterrestrials is strongly ingrained within UFO mythology.
—Eric Lagatta, USA Today, 28 Oct. 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 7 Nov. 2025.
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