50 entries under substantial topic. ×
| distinguished(significant, large) | |
| doozie(significant, large) | |
| dynamite(significant, large) | |
| essential(significant, large) | |
| fab(significant, large) | |
| fat(significant, large) | |
| goodly(significant, large) | |
| hefty(significant, large) | |
| influential(significant, large) | |
| large-scale(significant, large) | |
| lavish(adjective, extraordinary, significant, extreme) | |
| major(significant, large) | |
| marked(significant, large) | |
| material(significant, large) | |
| meaningful(significant, large) | |
| momentous(significant, large) | |
| mondo(significant, large) | |
| much(significant, large) | |
| noteworthy(significant, large) | |
| noticeable(significant, large) |
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Astronomical on
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| APA | Smart Define. (2015). astronomical thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/astronomical/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "astronomical thesaurus" https://smartdefine.org/astronomical/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, astronomical thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/astronomical/thesaurus/synonyms>. |
| MLA | Smart Define. "astronomical thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/astronomical/thesaurus/synonyms> |