63 entries under underground topic. ×
| unknown(adjective, obscure, rough, anxious, worried) | |
| backdoor(obscure, deep, unknown, clandestine) | |
| backstairs(clandestine, undisclosed) | |
| camouflaged(obscure, unknown, clandestine, undisclosed) | |
| clandestine | |
| classified(obscure, unknown, clandestine, undisclosed) | |
| cloak-and-dagger(obscure, unknown, clandestine, undisclosed) | |
| close(obscure, unknown, clandestine, undisclosed) | |
| closet(obscure, unknown, clandestine, undisclosed) | |
| confidential(clandestine, undisclosed) | |
| conspiratorial(obscure, unknown, clandestine, undisclosed) | |
| covered(obscure, unknown, clandestine, undisclosed) | |
| covert(cover, obscure, dark, equivocal, clandestine) | |
| disguised(obscure, unknown, clandestine, undisclosed) | |
| dissembled(clandestine, undisclosed) | |
| dissimulated(clandestine, undisclosed) | |
| furtive(obscure, unknown, clandestine, undisclosed) | |
| in ambush(expression, clandestine, undisclosed) | |
| incognito(clandestine, undisclosed) | |
| inside(clandestine, undisclosed) |
For more, visit
Ambiguous on
Power Thesaurus
| APA | Smart Define. (2016). ambiguous thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/ambiguous/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "ambiguous thesaurus" https://smartdefine.org/ambiguous/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, ambiguous thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/ambiguous/thesaurus/synonyms>. |
| MLA | Smart Define. "ambiguous thesaurus" 29 March 2016. Web. 23 September 2026. <https://smartdefine.org/ambiguous/thesaurus/synonyms> |