SUBTERRANEAN Synonyms: 5 Similar and Opposite Words

subterranean

adjective

ˌsəb-tə-ˈrā-nē-ən

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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Example Sentences

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 Their translucent bodies suggest adaptation to a subterranean environment where light doesn’t reach. —

Hanna Wickes, Miami Herald, 20 Feb. 2026 Work off dinner with a trip down the stairs to the subterranean speakeasy bar with dance music and vintage license plates. —

Joe Mutascio, IndyStar, 20 Feb. 2026 The Peacock Lounge is part elegant speakeasy, part subterranean lair, hidden away from the rowdier crowds making bar runs in Savannah on a Saturday night. —

Adam Kuehl, New York Times, 19 Feb. 2026 There is also radiant heating throughout, as well as a subterranean six-car garage with EV charging and additional parking for up to 20 vehicles. —

Wendy Bowman, Robb Report, 18 Feb. 2026 See All Example Sentences for subterranean

Recent Examples of Synonyms for subterranean

underground

Adjective

View gallery - 3 images Over the last few years, an ambitious moonshot project spun out of Google has been developing fascinating technologies to deliver connectivity across communities without the need for underground cables.

— Abhimanyu Ghoshal, New Atlas, 28 Feb. 2026
The City of Atlanta Department of Watershed Management is building an underground vault with a park on top to improve stormwater management, enhance drainage, and reduce flooding and sewer overflow that have historically affected the area.

— Drew Kann, AJC.com, 28 Feb. 2026