147 entries under significant topic. ×
| of note(expression, big, substantial, valuable) | |
| of substance(expression, big, substantial, valuable) | |
| ponderous(big, substantial, valuable, vital) | |
| primordial(simple, important, original, basic) | |
| renowned(big, important, substantial, large) | |
| ruling(adjective, important, serious, prominent) | |
| salient(big, important, substantial, valuable) | |
| signal(vital, imperative) | |
| solid gold(expression, big, important, substantial) | |
| something(big, important, substantial, large) | |
| something else(expression, big, important, substantial) | |
| standout(big, substantial, valuable, vital) | |
| substrative(adjective, important, original, basic) | |
| super(big, important, substantial, large) | |
| super-duper(big, important, substantial, large) | |
| supporting(important, original, basic, vital) | |
| sustaining(important, original, basic, vital) | |
| theoretical(important, original, basic, vital) | |
| underived(adjective, simple, rough, important) | |
| unreal(big, important, substantial, large) |
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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> |