176 entries under substantial topic. ×
| stable(adjective, strong, hard, solid, physical) | |
| standout(big, significant, valuable, vital) | |
| strong(adjective, hard, solid, big, important) | |
| super(big, important, significant, large) | |
| super-duper(big, important, significant, large) | |
| to the max(expression, idiom, big, important) | |
| united | |
| unreal(big, important, significant, large) | |
| unshakable(adjective, strong, hard, sturdy) | |
| urgent(adjective, big, significant, valuable) | |
| valuable(big, significant, large, vital) | |
| venerable(big, important, significant, large) | |
| astronomical(significant, large) | |
| big deal(expression, big, heavy) | |
| bountiful(significant, large) | |
| bulky(big, heavy, significant, large) | |
| burdensome(big, heavy) | |
| comfortable(significant, large) | |
| commodious(significant, large) | |
| compact(adjective, strong, hard, tight) |
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| APA | Smart Define. (2016). material thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/material/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "material thesaurus" https://smartdefine.org/material/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, material thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/material/thesaurus/synonyms>. |
| MLA | Smart Define. "material thesaurus" 29 March 2016. Web. 23 September 2026. <https://smartdefine.org/material/thesaurus/synonyms> |