44 entries under clandestine topic. ×
| dissimulated(fake, counterfeit, lying, underground) | |
| enigmatical(obscure, unknown, underground, undisclosed) | |
| furtive(obscure, unknown, underground, undisclosed) | |
| in ambush(expression, underground, undisclosed) | |
| incognito(secret, hidden, underground, undisclosed) | |
| inside(underground, undisclosed) | |
| restricted(underground, undisclosed) | |
| sly(underground, undisclosed) | |
| sneak(underground, undisclosed) | |
| sneaky(underground, undisclosed) | |
| stealthy(underground, undisclosed) | |
| strange(obscure, unknown, underground, undisclosed) | |
| sub-rosa(underground, undisclosed) | |
| top-secret(underground, undisclosed) | |
| top secret(expression, underground, undisclosed) | |
| unacknowledged(underground, undisclosed) | |
| under-the-table(underground, undisclosed) | |
| under false pretense(expression, idiom, underground, undisclosed) | |
| underhand(underground, undisclosed) | |
| underhanded(underground, undisclosed) |
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| APA | Smart Define. (2015). covered thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/covered/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "covered thesaurus" https://smartdefine.org/covered/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2015, covered thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/covered/thesaurus/synonyms>. |
| MLA | Smart Define. "covered thesaurus" 13 April 2015. Web. 26 September 2026. <https://smartdefine.org/covered/thesaurus/synonyms> |