- Definitions|1
- Thesaurus|860
- Abbreviations|0
46 entries under covert topic. ×
| surreptitious(adjective, dishonest, secret, hidden, spy) | |
| underground(adjective, secret, unknown, hidden, spy) | |
| hidden(adjective, secret, spy, clandestine, underground) | |
| hole-and-corner(adjective, secret, private, hidden, spy) | |
| confidential(adjective, secret, hidden, spy, clandestine) | |
| stealthy(adjective, quiet, dishonest, secret, hidden) | |
| underhand(adjective, deceitful, secret, hidden, spy) | |
| spy(adjective, secret, warning, hidden) | |
| backstairs(adjective, mysterious, private, reticent, taciturn) | |
| buried(adjective, secret, unknown, hidden, concealed) | |
| skulking(adjective, secret, private, hidden, sneak) | |
| sneaky(adjective, quiet, dishonest, cunning, secret) | |
| underneath(adjective, secret, hidden, spy) | |
| disguised(adjective, obscure, secret, hidden, clandestine) | |
| obscured(adjective, secret, hidden, underground, concealed) | |
| sly(adjective, quiet, dishonest, cunning, deceitful) | |
| stealth(noun, adjective, secret, hidden, spy) | |
| creep(adjective, secret, hidden, spy) | |
| feline(mysterious, private, reticent, taciturn) | |
| intelligence(adjective, secret, hidden, spy) |
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| APA | Smart Define. (2015). undercover thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/undercover/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "undercover thesaurus" https://smartdefine.org/undercover/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, undercover thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/undercover/thesaurus/synonyms>. |
| MLA | Smart Define. "undercover thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/undercover/thesaurus/synonyms> |