as in underground
being, situated, or operating beneath the surface of the earth a subterranean bunker that supposedly could withstand even an atomic blast

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

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 After a four-year closure, the popular series of subterranean chambers laced with crystalline formations found beneath Sequoia National Park is reopening to the public. Bailey Berg, AFAR Media, 9 Apr. 2025 In addition, there's evidence of a 300-mile-deep (483-km) subterranean ocean trapped beneath the icy crust 25 to 62 miles (40 to 100 km) thick that is warmed by hydrothermal activity caused by the tides generated by the mass of Saturn. David Szondy, New Atlas, 8 Apr. 2025 The building’s subterranean spa includes a sauna, hammam, two treatment rooms, and a Jacuzzi. Katie Lockhart, Robb Report, 27 Mar. 2025 Sure, the cost of a tunnel 60 feet underground with elevators, escalators and stairs leading to a subterranean platform with ventilation shafts, lighting and security is exorbitant. Sun Sentinel Editorial Board, Sun Sentinel, 5 Apr. 2025 See All Example Sentences for subterranean

Browse Nearby Words

Cite this Entry

“Subterranean.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/subterranean. Accessed 22 Apr. 2025.

More from Merriam-Webster on subterranean

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!