- Definitions|1
- Thesaurus|550
- Abbreviations|0
137 entries under adjective topic. ×
| hefty(hard, difficult, heavy, complex) | |
| weighty(hard, difficult, heavy, important) | |
| grave(hard, difficult, important, complex) | |
| massive(hard, difficult, heavy, complex) | |
| ponderous(hard, difficult, heavy, complex) | |
| serious(hard, difficult, important, complex) | |
| tough(hard, difficult, complex) | |
| burdensome(hard, difficult, heavy, complex) | |
| grievous(hard, difficult, complex) | |
| leaden(hard, difficult, complex) | |
| massy(hard, difficult, complex) | |
| burly(hard, difficult, complex) | |
| rugged(hard, difficult, complex) | |
| severe(hard, difficult, complex) | |
| notable(noun, figure, important, star) | |
| gargantuan | |
| major(great, important, serious) | |
| heavy(noun, order, great, tough) | |
| big(great, informal, heavy, important) | |
| chief(noun, order, superior, heavy) |
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| APA | Smart Define. (2016). heavyweight thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/heavyweight/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "heavyweight thesaurus" https://smartdefine.org/heavyweight/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, heavyweight thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/heavyweight/thesaurus/synonyms>. |
| MLA | Smart Define. "heavyweight thesaurus" 26 February 2016. Web. 24 September 2026. <https://smartdefine.org/heavyweight/thesaurus/synonyms> |