- Definitions|2
- Thesaurus|2.2k
- Abbreviations|0
112 entries under secret topic. ×
| mysterious(adjective, hard, evil, obscure, solid) | |
| abstruse(adjective, hard, evil, obscure, difficult) | |
| buried(verb, adjective, show, obscure) | |
| undisclosed(adjective, cover, obscure, dark) | |
| recondite(adjective, evil, obscure, difficult, strange) | |
| arcane(adjective, evil, obscure, solid, strange) | |
| camouflaged(verb, adjective, quiet, obscure) | |
| furtive(adjective, strange, clandestine, sneaky) | |
| masked(verb, adjective, obscure, unknown) | |
| mystical(adjective, hard, evil, obscure, strange) | |
| disguised(verb, adjective, obscure, unknown) | |
| out of sight(expression, adjective, idiom, adverb, view) | |
| ulterior(adjective, cover, show, separate, obscure) | |
| underground(adjective, unknown, concealed, covert) | |
| hush-hush(adjective, quiet, separate, reserved) | |
| privy(adjective, cover, separate, obscure, dark) | |
| screened(verb, adjective, close, quiet, show) | |
| shrouded(adjective, obscure, dark, clandestine) | |
| undercover(adjective, spy, clandestine, underground) | |
| indiscernible(adjective, unseen, invisible) |
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| APA | Smart Define. (2015). hidden thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/hidden/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "hidden thesaurus" https://smartdefine.org/hidden/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, hidden thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/hidden/thesaurus/synonyms>. |
| MLA | Smart Define. "hidden thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/hidden/thesaurus/synonyms> |