- Definitions|2
- Thesaurus|243
- Abbreviations|0
39 entries under adjective topic. ×
| underground(surface, depth) | |
| subterraneous | |
| buried(hidden, underground, covered, depth) | |
| subterrestrial(surface, hidden, underground, covered) | |
| ulterior | |
| deep(low, down, far, depth) | |
| secret(hidden, underground) | |
| subaqueous | |
| sunken(hidden, underground, covered) | |
| covert(hidden, underground) | |
| covered(hidden, underground) | |
| underfoot(hidden, underground, covered) | |
| hypogeal(surface, underground) | |
| hypogean(surface, underground) | |
| hypogeous(surface, underground) | |
| profound(depth, bottomless) | |
| below ground(hidden, underground, covered) | |
| cavernous | |
| subversive(hidden, underground) | |
| under wraps(hidden, underground) |
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Subterranean on
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| APA | Smart Define. (2015). subterranean thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/subterranean/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "subterranean thesaurus" https://smartdefine.org/subterranean/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, subterranean thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/subterranean/thesaurus/synonyms>. |
| MLA | Smart Define. "subterranean thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/subterranean/thesaurus/synonyms> |