- Definitions|2
- Thesaurus|279
- Abbreviations|0
68 entries under clandestine topic. ×
| furtive(adjective, close, mysterious, reticent, taciturn) | |
| covert(adjective, mysterious, private, reticent, taciturn) | |
| surreptitious(adjective, underground, undisclosed) | |
| secret(adjective, sensitive, underground, undisclosed) | |
| stealthy(adjective, underground, undisclosed) | |
| underground(adjective, undisclosed) | |
| underhand(adjective, underground, undisclosed) | |
| sneaky(adjective, underground, undisclosed) | |
| underhanded(adjective, underground, undisclosed) | |
| secretive(adjective, mysterious, private, restricted, reticent) | |
| sly(adjective, underground, undisclosed) | |
| backdoor(close, sensitive, inside, underground) | |
| hidden(unknowing, underground, undisclosed, hermetical) | |
| confidential(adjective, restricted, underground, discreet) | |
| cryptic(adjective, close, mysterious, private, reticent) | |
| hush-hush(underground, undisclosed) | |
| occult(underground, undisclosed) | |
| under-the-table(sensitive, unknowing, underground, undisclosed) | |
| arcane(adjective, underground, undisclosed) | |
| camouflaged(close, underground, undisclosed, furtive) |
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| APA | Smart Define. (2015). backstairs thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/backstairs/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "backstairs thesaurus" https://smartdefine.org/backstairs/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, backstairs thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/backstairs/thesaurus/synonyms>. |
| MLA | Smart Define. "backstairs thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/backstairs/thesaurus/synonyms> |