147 entries under significant topic. ×
| first(adjective, important, original, prominent) | |
| relevant(adjective, importance, big, substantial) | |
| basal(adjective, body, simple, plain, material) | |
| compulsory(adjective, set, important, critical) | |
| influential(adjective, importance, big, important) | |
| interior(adjective, important, basic, main) | |
| outstanding(adjective, importance, important, valuable) | |
| big(adjective, importance, important, substantial) | |
| considerable(adjective, importance, big, substantial) | |
| foremost(adjective, importance, big, important) | |
| paramount(adjective, importance, important, original) | |
| urgent(adjective, severe, big, important) | |
| all-important(adjective, important, serious, critical) | |
| major(adjective, important, original, substantial) | |
| pressing(adjective, big, important, substantial) | |
| primitive(adjective, body, simple, plain, material) | |
| quintessential(adjective, characteristic, important, common, ordinary) | |
| inmost(adjective, important, basic, intimate) | |
| original(adjective, characteristic, body, simple, plain) | |
| wanted(adjective, important, serious, capital) |
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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> |