- Definitions|1
- Thesaurus|321
- Abbreviations|0
62 entries under private topic. ×
| hush-hush(dishonest, secret, clandestine, underground) | |
| off the record(expression, adjective, idiom, adverb, sensitive) | |
| on the sly(expression, adjective, idiom, adverb, secret) | |
| undercover(adjective, adverb, dishonest, cunning, deceitful) | |
| arcane(obscure, secret, unknown, clandestine) | |
| backdoor(obscure, sensitive, secret, unknown) | |
| backstairs(sensitive, mysterious, reticent, taciturn) | |
| cagey(mysterious, reticent, taciturn, covert) | |
| clandestine(dishonest, cunning, deceitful, secret) | |
| classified(obscure, sensitive, secret, unknown) | |
| close(obscure, reserved, mysterious, reticent) | |
| close-mouthed(reserved, mysterious, reticent, taciturn) | |
| confidential(sensitive, secret, hidden, spy) | |
| covert(mysterious, secret, reticent, hidden) | |
| cryptic(obscure, mysterious, reticent, unknown) | |
| enigmatic(mysterious, reticent, taciturn, covert) | |
| feline(mysterious, reticent, taciturn, covert) | |
| fraudulent(dishonest, cunning, deceitful, secret) | |
| hidden(secret, spy, unknowing, underground) | |
| hole-and-corner(adjective, secret, hidden, spy) |
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| APA | Smart Define. (2011). on the qt thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/on_the_qt/thesaurus/synonyms |
| Chicago | Smart Define. 2011. "on the qt thesaurus" https://smartdefine.org/on_the_qt/thesaurus/synonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2011, on the qt thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/on_the_qt/thesaurus/synonyms>. |
| MLA | Smart Define. "on the qt thesaurus" 24 May 2011. Web. 30 September 2026. <https://smartdefine.org/on_the_qt/thesaurus/synonyms> |