as in underground
being, situated, or operating beneath the surface of the earth
a subterranean bunker that supposedly could withstand even an atomic blast
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Recent Examples of subterranean
Randy Tufts and Gary Tenen squeezed through a small opening in the Whetstone Mountains of southern Arizona and entered a magical subterranean world, an untouched wet, living cave.
—
Roger Naylor, AZCentral.com, 29 Aug. 2025
Activities and Amenities One Aldwych has a range of nice amenities, but one of the standouts has to be its chlorine-free, subterranean swimming pool in the wellness center, which was one of my favorite places to unwind after a day of exploring.
—Samantha Brash, Travel + Leisure, 24 Aug. 2025
Fires, tunnel collapses, undetected gas The subterranean fires are just one of the obstacles facing Siyabonga and his colleagues.
—Tommy Trenchard, NPR, 23 Aug. 2025
An homage to the subterranean colony in her Broken Earth series.
—James Folta, Literary Hub, 21 Aug. 2025
See All Example Sentences for subterranean
Roger Naylor, AZCentral.com, 29 Aug. 2025
Activities and Amenities One Aldwych has a range of nice amenities, but one of the standouts has to be its chlorine-free, subterranean swimming pool in the wellness center, which was one of my favorite places to unwind after a day of exploring.
—Samantha Brash, Travel + Leisure, 24 Aug. 2025
Fires, tunnel collapses, undetected gas The subterranean fires are just one of the obstacles facing Siyabonga and his colleagues.
—Tommy Trenchard, NPR, 23 Aug. 2025
An homage to the subterranean colony in her Broken Earth series.
—James Folta, Literary Hub, 21 Aug. 2025
See All Example Sentences for subterranean
Recent Examples of Synonyms for subterranean
underground
Adjective
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Korean Central News Agency/AP What To Know North Korea has conducted six underground nuclear tests since 2006, the most recent in 2017.—
Robert Birsel,
MSNBC Newsweek,
9 Sep. 2025
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Around a million years ago, a sinkhole opened, turning the Cedar Creek waterway into an underground river.—
Lydia Mansel,
Southern Living,
8 Sep. 2025
Cite this Entry
“Subterranean.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/subterranean. Accessed 9 Sep. 2025.
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