20 entries under expression topic. ×
| in disguise(adjective, idiom, adverb, furtively) | |
| on the sly(idiom, adverb, furtively) | |
| under cover(adverb, secret, spy, covert) | |
| by stealth(idiom, concealment, furtively) | |
| in ambush(close, restricted, clandestine, underground) | |
| in camera(idiom, concealment, furtively) | |
| in secret(idiom, adverb) | |
| little known(strange, new, remote, indefinite) | |
| top secret(close, clandestine, underground, undisclosed) | |
| under false pretense(idiom, close, clandestine, underground) | |
| under wraps(secret, hidden, clandestine, underhanded) | |
| without a name | |
| behind a screen(idiom, concealment) | |
| behind the curtain(idiom, concealment) | |
| behind the scenes(idiom, concealment) | |
| cloak and dagger(idiom, restricted, discreet) | |
| in holes and corners(idiom, furtively) | |
| on the QT(idiom, secret, hidden, spy) | |
| on the quiet(idiom, furtively) | |
| unheard of(strange, indefinite, unidentified) |
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| APA | Smart Define. (2015). incognito thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/incognito/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "incognito thesaurus" https://smartdefine.org/incognito/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, incognito thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/incognito/thesaurus/synonyms>. |
| MLA | Smart Define. "incognito thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/incognito/thesaurus/synonyms> |