64 entries under clandestine topic. ×
| secretive(restricted, underground, discreet, undisclosed) | |
| sly(sharp, smart, intelligent, clever, astute) | |
| sneak(close, restricted, underground, discreet) | |
| sneaky(underground, undisclosed) | |
| stealthy(adjective, underground, undisclosed) | |
| sub-rosa(close, underground, undisclosed, furtive) | |
| surreptitious(underground, undisclosed) | |
| top secret(expression, close, private, underground) | |
| unacknowledged(close, underground, undisclosed, furtive) | |
| under-the-table(underground, undisclosed) | |
| under false pretense(expression, idiom, close, underground) | |
| underground | |
| underhand(sharp, smart, intelligent, prudent, clever) | |
| abstruse(underground, undisclosed) | |
| ambiguous(underground, undisclosed) | |
| arcane(intimate, secret, private, underground) | |
| cloak-and-dagger(underground, undisclosed) | |
| clouded(underground, undisclosed) | |
| conspiratorial(underground, undisclosed) | |
| covered(underground, undisclosed) |
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| APA | Smart Define. (2015). inside thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/inside/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "inside thesaurus" https://smartdefine.org/inside/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, inside thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/inside/thesaurus/synonyms>. |
| MLA | Smart Define. "inside thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/inside/thesaurus/synonyms> |