- Definitions|2
- Thesaurus|1.3k
- Abbreviations|0
53 entries under underground topic. ×
| furtive(adjective, mean, smooth, smart, dishonest) | |
| sneaky(adjective, mean, bad, smooth, wrong) | |
| underhanded(adjective, honest, false, dishonest, cunning) | |
| backstairs(adjective, clandestine, undisclosed) | |
| conspiratorial(adjective, clandestine, undisclosed, sneaky) | |
| deep(sharp, smart, intelligent, cunning, clever) | |
| closet(noun, adjective, hidden, clandestine) | |
| incognito(secret, hidden, spy, clandestine) | |
| undisclosed(adjective, clandestine) | |
| camouflaged(secret, hidden, clandestine, undisclosed) | |
| cloak-and-dagger(hidden, clandestine, fraudulent, undisclosed) | |
| cloaked(secret, hidden, clandestine, sneaky) | |
| confidential(secret, hidden, spy, clandestine) | |
| disguised(secret, hidden, clandestine, sneaky) | |
| dissembled(secret, hidden, clandestine, undisclosed) | |
| masked(secret, hidden, clandestine, sneaky) | |
| obscure(ambiguous, rambling, clandestine, incidental) | |
| out-of-the-way(ambiguous, rambling, clandestine, incidental) | |
| sneak(clandestine, undisclosed) | |
| unrevealed(adjective, clandestine, undisclosed) |
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| APA | Smart Define. (2015). underhand thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/underhand/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "underhand thesaurus" https://smartdefine.org/underhand/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, underhand thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/underhand/thesaurus/synonyms>. |
| MLA | Smart Define. "underhand thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/underhand/thesaurus/synonyms> |