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
Inside Son Doong, a subterranean river continues to carve the cave, producing a constant roar that echoes through its chambers.
—
Brit McCandless Farmer, CBS News, 29 Mar. 2026
The spa The serene, partially subterranean spa has seven treatment rooms, hammams, saunas, and a spacious relaxation area.
—Condé Nast, Condé Nast Traveler, 28 Mar. 2026
The groundwater flowing through the subterranean cave systems of central Texas are vital for both farming and daily life.
—Andrew Paul, Popular Science, 26 Mar. 2026
The drums might knock and rattle or sound like they were dunked in the subterranean oceans of Titan.
—Stephen Kearse, Pitchfork, 24 Mar. 2026
See All Example Sentences for subterranean
Brit McCandless Farmer, CBS News, 29 Mar. 2026
The spa The serene, partially subterranean spa has seven treatment rooms, hammams, saunas, and a spacious relaxation area.
—Condé Nast, Condé Nast Traveler, 28 Mar. 2026
The groundwater flowing through the subterranean cave systems of central Texas are vital for both farming and daily life.
—Andrew Paul, Popular Science, 26 Mar. 2026
The drums might knock and rattle or sound like they were dunked in the subterranean oceans of Titan.
—Stephen Kearse, Pitchfork, 24 Mar. 2026
See All Example Sentences for subterranean
Recent Examples of Synonyms for subterranean
underground
Adjective
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Some researchers believe ancient peoples sought relief from heat in the caves, which were fed by fresh underground water.—
Ryan Brennan
April 4,
Miami Herald,
4 Apr. 2026
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The New York Times, citing US intelligence reports, said Iranian personnel have been digging out underground missile bunkers and silos struck by American and Israeli bombs and returning them to operation hours after attacks.—
Arsalan Shahla,
Fortune,
4 Apr. 2026
Cite this Entry
“Subterranean.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/subterranean. Accessed 5 Apr. 2026.
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