82 entries under substantial topic. ×
| ample(significant, large, quite, fairly) | |
| appreciable(significant, large) | |
| astronomical(significant, large) | |
| bountiful(significant, large) | |
| chief(big, significant, valuable, vital) | |
| comfortable(significant, large) | |
| commodious(significant, large) | |
| goodly(significant, large) | |
| hefty(significant, large) | |
| huge(significant, large) | |
| large-scale(significant, large) | |
| lavish(significant, large) | |
| major(significant, large) | |
| much(significant, large, quite, fairly) | |
| noticeable(significant, large) | |
| plentiful(significant, large) | |
| reasonable(significant, large) | |
| respectable(significant, large) | |
| sizable(significant, large, quite, fairly) | |
| sizeable(significant, large) |
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| APA | Smart Define. (2015). something thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/something/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "something thesaurus" https://smartdefine.org/something/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, something thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/something/thesaurus/synonyms>. |
| MLA | Smart Define. "something thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/something/thesaurus/synonyms> |