- Definitions|2
- Thesaurus|5k
- Abbreviations|0
133 entries under big topic. ×
| cumbersome(adjective, heavy, awkward, large) | |
| fat(adjective, hard, great, heavy) | |
| gross(great, physical, material, awkward) | |
| humongous(great, huge) | |
| immeasurable(great, huge) | |
| imperative(significant, valuable, vital) | |
| noteworthy(adjective, important, significant, large) | |
| obese(adjective, hard, solid, heavy) | |
| primary(important, significant, serious, valuable) | |
| staid(adjective, firm, solid, heavy) | |
| super(great, important, significant, large) | |
| to the max(expression, idiom, important, significant) | |
| urgent(adjective, significant, valuable, vital) | |
| booming(adjective, strong, great, rich) | |
| comprehensive(great, generous, huge, good-sized) | |
| cumbrous(heavy, awkward, large, weighty) | |
| decisive(important, significant, valuable, vital) | |
| distinguished(important, significant, large) | |
| doozie(important, significant, large) | |
| extravagant(great, huge, enough, heaps) |
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| APA | Smart Define. (2016). substantial thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/substantial/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "substantial thesaurus" https://smartdefine.org/substantial/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, substantial thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/substantial/thesaurus/synonyms>. |
| MLA | Smart Define. "substantial thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/substantial/thesaurus/synonyms> |