SUBTERRANEAN Synonyms: 5 Similar and Opposite Words

subterranean

adjective

ˌsəb-tə-ˈrā-nē-ən

Definition of subterranean

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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Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of subterranean Conceived as an extension to a subterranean municipal facility, the structure houses exhibition halls, meeting rooms, and a planning bureau beneath petal-like volumes. — Kieron Marchese, Architectural Digest, 6 Oct. 2026 On a frigid but bright December morning, David Ellison, his top legal chief Makan Delrahim and coterie of executives took over a subterranean space in the New York City office of investment bank UBS. — Alex Weprin, HollywoodReporter, 6 Oct. 2026 Today, scientists believe these subterranean formations could offer a reliable solution to the clean energy transition’s biggest storage challenge. — Mrigakshi Dixit, Interesting Engineering, 29 Sep. 2026 Throughout—and even echoed in the staff’s smart wardrobe—there’s a sophisticated color palette of taupe, seafoam, and rich Bordeaux reds, perhaps a nod to the owner’s extensive wine collection, housed in three subterranean cellars. — Nicole Trilivas, Travel + Leisure, 29 Sep. 2026 See All Example Sentences for subterranean

Recent Examples of Synonyms for subterranean

underground

Adjective

Deep underground, iron-rich rocks could hold the key to producing hydrogen at a fraction of the cost of conventional fuels.

— Georgina Jedikovska, Interesting Engineering, 18 Oct. 2026
Additionally, the estate includes elevator service to all three floors, 25-yard lap pool, outdoor kitchen, veranda with stone fireplace and underground seven-car garage with Tesla charging station.

— Veronica Fernandez-Alvarado, Sacbee.com, 15 Oct. 2026

Definition of underground

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subterfuge

subterranean

subtile

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“Subterranean.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/subterranean. Accessed 20 Oct. 2026.

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Synonyms of subterranean

adjective

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