27 entries under underhanded topic. ×
| clandestine(secret, hidden, underground, concealed) | |
| furtive(secret, hidden, clandestine, underground) | |
| sub rosa(expression, secret, clandestine, underground) | |
| surreptitious(secret, hidden, clandestine, underground, concealed) | |
| under-the-table(secret, hidden, clandestine, underground) | |
| underhand(secret, hidden, clandestine, underground) | |
| unsuspected(secret, hidden, clandestine, underground) |
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| APA | Smart Define. (2015). obscured thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/obscured/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "obscured thesaurus" https://smartdefine.org/obscured/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2015, obscured thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/obscured/thesaurus/synonyms>. |
| MLA | Smart Define. "obscured thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/obscured/thesaurus/synonyms> |