- Definitions|2
- Thesaurus|2.2k
- Abbreviations|0
66 entries under idiom topic. ×
| under the surface | |
| under the table(expression, adjective, unknowing, clandestine) | |
| wrapped in clouds | |
| be hidden | |
| carefully quarded | |
| clear as mud(expression, unintelligibility) | |
| cloak and dagger(expression, fraudulent) | |
| close quarters | |
| communicated covertly | |
| dense foliage | |
| examine and study | |
| hard to explain(expression, hard, tricky, complicated) | |
| hard to solve(expression, hard, tricky, complicated) | |
| hidden from sight(expression, adjective, secret, concealed) | |
| hidden from view(expression, adjective, secret, concealed) | |
| in a corner(expression, unknowing, hermetical, unbriefed) | |
| in holes and corners(expression, fraudulent) | |
| in petto(expression, concealment) | |
| in the background(expression, isolated, unknowing, reclusive) | |
| in the boonies(expression, isolated, reclusive, uncompanionable) |
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| APA | Smart Define. (2015). hidden thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/hidden/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "hidden thesaurus" https://smartdefine.org/hidden/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, hidden thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/hidden/thesaurus/synonyms>. |
| MLA | Smart Define. "hidden thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/hidden/thesaurus/synonyms> |