62 entries under clandestine topic. ×
| crafty(adjective, mean, smooth, keen, sharp) | |
| cunning(noun, adjective, mean, smooth, keen) | |
| foxy(adjective, mean, smooth, keen, sharp) | |
| calculating(adjective, mean, smooth, keen, sharp) | |
| secret(adjective, dishonest, deceitful, clever) | |
| covert(adjective, quiet, mean, clever, secret) | |
| sneak(verb, move, spiriting, underground) | |
| backstairs(adjective, underground, undisclosed) | |
| private(adjective, secret, hidden, underground) | |
| reticent(wary, underground, guarded, undisclosed) | |
| close(underground, undisclosed, concealment) | |
| hidden(adjective, cunning, secret, private) | |
| under-the-table(secret, private, hidden, sneaky) | |
| underground | |
| backdoor(underground, undisclosed) | |
| camouflaged(underground, undisclosed) | |
| classified(underground, undisclosed) | |
| cloak-and-dagger(adjective, full, underground, fraudulent) | |
| closet(adjective, underground, fraudulent, undisclosed) | |
| confidential(underground, undisclosed) |
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| APA | Smart Define. (2016). sly thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/sly/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "sly thesaurus" https://smartdefine.org/sly/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, sly thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/sly/thesaurus/synonyms>. |
| MLA | Smart Define. "sly thesaurus" 24 March 2016. Web. 23 September 2026. <https://smartdefine.org/sly/thesaurus/synonyms> |