- Definitions|2
- Thesaurus|2.2k
- Abbreviations|0
51 entries under complicated topic. ×
| esoteric(adjective, hard, evil, obscure, strange) | |
| dark(adjective, obscure, mysterious, secret, strange) | |
| obscure(adjective, quiet, cover, hard, difficult) | |
| cryptic(adjective, cover, evil, obscure, difficult) | |
| mysterious(adjective, hard, evil, obscure, solid) | |
| abstruse(adjective, hard, evil, obscure, difficult) | |
| recondite(adjective, evil, obscure, difficult, strange) | |
| mystical(adjective, hard, evil, obscure, strange) | |
| deep(adjective, hard, evil, obscure, complex) | |
| subtle(adjective, quiet, hard, obscure, plain) | |
| enigmatic(adjective, cover, hard, evil, obscure) | |
| profound(hard, obscure, complex, deep, mysterious) | |
| unfathomable(adjective, hard, obscure, difficult, solid) | |
| impenetrable(adjective, obscure, difficult, solid, dark) | |
| inscrutable(adjective, obscure, solid, strange, sophisticated) | |
| inexplicable(adjective, hard, obscure, solid, strange) | |
| unintelligible(adjective, hard, obscure, solid, dark) | |
| abstract(hard, obscure, tricky, puzzling) | |
| puzzling(adjective, hard, evil, obscure, difficult) | |
| unclear(adjective, hard, obscure, delicate, loose) |
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| APA | Smart Define. (2015). hidden thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/hidden/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "hidden thesaurus" https://smartdefine.org/hidden/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2015, hidden thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/hidden/thesaurus/synonyms>. |
| MLA | Smart Define. "hidden thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/hidden/thesaurus/synonyms> |