- Definitions|0
- Thesaurus|174
- Abbreviations|0
28 entries under hard topic. ×
| mixed(adjective, fancy, difficult, complex) | |
| perplexing(adjective, fancy, difficult, complex) | |
| problematic(adjective, fancy, difficult, complex) | |
| puzzling(adjective, fancy, difficult, complex) | |
| recondite(adjective, fancy, difficult, complex) | |
| sophisticated(adjective, fancy, difficult, complex) | |
| troublesome(adjective, fancy, difficult, complex) | |
| various(adjective, fancy, difficult, complex) |
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| APA | Smart Define. (2015). wheels within wheels thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/wheels_within_wheels/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "wheels within wheels thesaurus" https://smartdefine.org/wheels_within_wheels/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2015, wheels within wheels thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/wheels_within_wheels/thesaurus/synonyms>. |
| MLA | Smart Define. "wheels within wheels thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/wheels_within_wheels/thesaurus/synonyms> |