67 entries under main topic. ×
| leading(adjective, important, head, significant, beginning) | |
| momentous(adjective, importance, valuable, notable) | |
| big(adjective, importance, valuable, notable) | |
| consequential(adjective, importance, valuable, notable) | |
| constitutive(adjective, importance, valuable, essential) | |
| earnest(adjective, importance, valuable, notable) | |
| outstanding(adjective, importance, valuable, notable) | |
| significant(adjective, importance, valuable, notable) | |
| fateful(adjective, importance, valuable, notable) | |
| grave(adjective, importance, valuable, notable) | |
| great(adjective, importance, valuable, notable) | |
| influential(adjective, importance, valuable, notable) | |
| significative(adjective, importance, valuable, notable) | |
| big league(adjective, lead, importance, head, master) | |
| big shot(adjective, importance, valuable, notable) | |
| bigwig(adjective, importance, valuable, notable) | |
| challenging(adjective, importance, valuable, notable) | |
| considerable(adjective, importance, extremely significant) | |
| donnish(adjective, importance, valuable, notable) | |
| exciting(adjective, importance, valuable, notable) |
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| APA | Smart Define. (2016). key thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/key/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "key thesaurus" https://smartdefine.org/key/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2016, key thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/key/thesaurus/synonyms>. |
| MLA | Smart Define. "key thesaurus" 29 March 2016. Web. 22 September 2026. <https://smartdefine.org/key/thesaurus/synonyms> |