6 entries under expression topic. ×
| avant garde(adjective, open, underground) | |
| below ground(adjective, ground, underground) | |
| in the recesses(adjective, idiom, ground, underground) | |
| on the sly(adjective, idiom, conservative, underground) | |
| under cover(adjective, underground) | |
| on the QT(adjective, idiom, underground) |
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| APA | Smart Define. (2015). sky thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/sky/thesaurus/antonyms |
| Chicago | Smart Define. 2015. "sky thesaurus" https://smartdefine.org/sky/thesaurus/antonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, sky thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/sky/thesaurus/antonyms>. |
| MLA | Smart Define. "sky thesaurus" 11 November 2015. Web. 22 September 2026. <https://smartdefine.org/sky/thesaurus/antonyms> |