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 Because there’s being down bad, then there’s subterranean levels of angst. —

Dieter Kurtenbach, Mercury News, 11 Mar. 2026 The most common termite in California is the subterranean termite, which lives underground beneath homes, Tahija said. —

Sacbee.com, 10 Mar. 2026 The stable and naturally cool subterranean environment – around 52 degrees Fahrenheit (11 degrees Celsius) – and underground lake reduce reliance on conventional mechanical cooling. —

Wangda Zuo, The Conversation, 9 Mar. 2026 The spa In the subterranean 6,800 square-foot space, therapists give deep-scrub facials in black Italian-marble treatment rooms. —

Condé Nast, Condé Nast Traveler, 7 Mar. 2026 See All Example Sentences for subterranean

Recent Examples of Synonyms for subterranean

underground

Adjective

Among the programs is one to remove underground storage tanks so soil underneath them can be evaluated for contamination.

— Doug Ross, Chicago Tribune, 21 Mar. 2026
The site is now a health resort more than 400 feet underground people can visit to get treatments.

— Nicole Fallert, USA Today, 20 Mar. 2026