95 entries under main topic. ×
| underlying(adjective, simple, plain, important, significant) | |
| leading(adjective, feature, state, characteristic, importance) | |
| radical(adjective, importance, important, significant, original) | |
| focal(adjective, important, significant, private) | |
| grave(adjective, severe, importance, big, important) | |
| meaningful(adjective, importance, big, important, significant) | |
| responsible(adjective, importance, valuable, duty, reliable) | |
| serious(adjective, severe, importance, big, important) | |
| weighty(adjective, importance, big, important, significant) | |
| consequential(adjective, importance, big, important, significant) | |
| first(adjective, important, significant, original, prominent) | |
| relevant(adjective, importance, big, significant, substantial) | |
| big-league(adjective, importance, valuable, notable) | |
| capital(adjective, importance, important, prominent, prime) | |
| earnest(adjective, importance, valuable, notable) | |
| fateful(adjective, importance, valuable, notable) | |
| influential(adjective, importance, big, important, significant) | |
| interior(adjective, important, significant, basic) | |
| outstanding(adjective, importance, important, significant, valuable) | |
| significant(adjective, importance, big, important, original) |
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| APA | Smart Define. (2016). essential thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/essential/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "essential thesaurus" https://smartdefine.org/essential/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, essential thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/essential/thesaurus/synonyms>. |
| MLA | Smart Define. "essential thesaurus" 31 March 2016. Web. 24 September 2026. <https://smartdefine.org/essential/thesaurus/synonyms> |