Synonyms of subterranean

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

Synonyms & Similar Words

• underground
• subsurface
• belowground

Antonyms & Near Antonyms

• surface
• aboveground

Example Sentences

Recent Examples of subterranean

Within two years, an ingenious tunnel complex was constructed, with arched ceilings and thick walls, and zigzag subterranean pathways to better absorb bomb blasts. — Maureen O'Hare, CNN Money, 26 Sep. 2026

Lielle, chef Marcus Jernmark’s subterranean Westside restaurant, is one of Los Angeles’ most exciting fine-dining debuts, pairing Scandinavian instincts with California sensibility. — Bill Addison, Los Angeles Times, 24 Sep. 2026

The subterranean expansion will be constructed beneath Plaza Perú, the public park that neighbors the museum, and will roughly double the museum’s current exhibition space. — News Desk, Artforum, 23 Sep. 2026

Previous seasons saw Vernon curate the subterranean room into messy domestic tableaux, with pieces nestled among scenes of dinner parties and unfinished musical manuscripts—the detritus of a chaotic creative process. — Anna Cafolla, Vogue, 21 Sep. 2026