- Definitions|1
- Thesaurus|860
- Abbreviations|0
61 entries under expression topic. ×
| clammed up(mysterious, private, reticent, taciturn) | |
| high and dry | |
| in a corner | |
| in a whisper | |
| in camera(adverb, clandestine, secretly, underhandedly) | |
| in chambers(mysterious, private, reticent, taciturn) | |
| in holes and corners(idiom, adverb, sly, clandestine) | |
| in privacy(mysterious, private, reticent, taciturn) | |
| in private(idiom, mysterious, private, reticent) | |
| in the clear | |
| in the wings | |
| nobody the wiser | |
| on the quiet(idiom, adverb, dishonest, clandestine) | |
| on the sly(idiom, adverb, secret, clandestine) | |
| out of danger | |
| under house arrest | |
| under the breath | |
| under the rose | |
| with bated breath | |
| advanced guard(idiom, warning) |
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| APA | Smart Define. (2015). undercover thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/undercover/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "undercover thesaurus" https://smartdefine.org/undercover/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, undercover thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/undercover/thesaurus/synonyms>. |
| MLA | Smart Define. "undercover thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/undercover/thesaurus/synonyms> |