4 entries under expression topic. ×
| hang tough(tough, difficult, wild, awkward) | |
| locked in(tough, difficult, wild, awkward) | |
| enwrapped in mystery | |
| tough nut(obstinate, stubborn, willful) |
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| APA | Smart Define. (2015). insoluble thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/insoluble/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "insoluble thesaurus" https://smartdefine.org/insoluble/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, insoluble thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/insoluble/thesaurus/synonyms>. |
| MLA | Smart Define. "insoluble thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/insoluble/thesaurus/synonyms> |