- Definitions|2
- Thesaurus|1.8k
- Abbreviations|0
56 entries under underground topic. ×
| recondite(adjective, sound, easy, evil, sharp) | |
| obscure(adjective, hard, sharp, difficult, dark) | |
| deep(adjective, hard, sound, easy, evil) | |
| mysterious(adjective, hard, evil, obscure, dark) | |
| arcane(adjective, evil, obscure, difficult, strange) | |
| esoteric(adjective, hard, sound, easy, evil) | |
| occult(noun, adjective, evil, obscure, dark) | |
| cryptic(adjective, evil, sharp, obscure, difficult) | |
| hidden(adjective, hard, evil, obscure, difficult) | |
| secret(adjective, evil, obscure, dark, strange) | |
| mystic(adjective, evil, obscure, dark, deep) | |
| ambiguous(adjective, obscure, strange, uncertain, doubtful) | |
| mystical(adjective, hard, evil, obscure, dark) | |
| under wraps(expression, clandestine, undisclosed) | |
| undercover(secret, unknown, hidden, concealed) | |
| unintelligible(adjective, hard, obscure, difficult, delicate) | |
| clandestine(secret, unknown, hidden, concealed) | |
| furtive(obscure, strange, unknown, clandestine) | |
| out-of-the-way(obscure, complex, unknown, clandestine) | |
| reticent(obscure, unknown, clandestine, undisclosed) |
For more, visit
Abstruse on
Power Thesaurus
| APA | Smart Define. (2015). abstruse thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/abstruse/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "abstruse thesaurus" https://smartdefine.org/abstruse/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, abstruse thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/abstruse/thesaurus/synonyms>. |
| MLA | Smart Define. "abstruse thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/abstruse/thesaurus/synonyms> |