- Definitions|2
- Thesaurus|556
- Abbreviations|0
25 entries under adjective topic. ×
| secret | |
| clandestine(adverb, slyly, underhandedly, surreptitiously) | |
| undercover(adverb, clandestine, slyly, underhandedly) | |
| confidential | |
| mysterious | |
| secretive | |
| deep | |
| furtive | |
| invisible | |
| mendacious | |
| surreptitious | |
| arcane | |
| cryptic | |
| esoteric | |
| hole-and-corner | |
| latent | |
| recondite | |
| sensitive | |
| shady | |
| stealthy |
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| APA | Smart Define. (2016). secretly thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/secretly/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "secretly thesaurus" https://smartdefine.org/secretly/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2016, secretly thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/secretly/thesaurus/synonyms>. |
| MLA | Smart Define. "secretly thesaurus" 19 February 2016. Web. 25 September 2026. <https://smartdefine.org/secretly/thesaurus/synonyms> |