- Definitions|2
- Thesaurus|1.9k
- Abbreviations|0
67 entries under underground topic. ×
| underhand(adjective, honest, false, dishonest, cunning) | |
| sneaky(adjective, honest, false, corrupt, dishonest) | |
| furtive(adjective, dishonest, cunning, deceitful, unpredictable) | |
| backstairs(clandestine, undisclosed) | |
| classified(clandestine, undisclosed) | |
| confidential(clandestine, undisclosed) | |
| private(secret, hidden, clandestine, undisclosed) | |
| sneak(clandestine, undisclosed) | |
| ulterior(secret, hidden, clandestine, privy) | |
| under-the-table(secret, hidden, clandestine, sneaky) | |
| backdoor(clandestine, undisclosed) | |
| camouflaged(secret, hidden, clandestine, undisclosed) | |
| cloaked(secret, hidden, clandestine, sneaky) | |
| discreet(clandestine, undisclosed) | |
| disguised(secret, hidden, clandestine, sneaky) | |
| dissembled(secret, hidden, clandestine, undisclosed) | |
| dissimulated(clandestine, undisclosed) | |
| hidden(secret, clandestine, undisclosed, sneaky) | |
| in ambush(expression, clandestine, undisclosed) | |
| incognito(secret, hidden, clandestine, undisclosed) |
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| APA | Smart Define. (2016). underhanded thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/underhanded/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "underhanded thesaurus" https://smartdefine.org/underhanded/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, underhanded thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/underhanded/thesaurus/synonyms>. |
| MLA | Smart Define. "underhanded thesaurus" 22 January 2016. Web. 23 September 2026. <https://smartdefine.org/underhanded/thesaurus/synonyms> |