83 entries under substantial topic. ×
| importunate(adjective, big, important, significant) | |
| large(big, significant, valuable, vital) | |
| marked(adjective, great, big, significant, individual) | |
| mattering much(expression, big, significant, valuable) | |
| mondo(big, important, significant, large) | |
| much(significant, large) | |
| noteworthy(big, important, significant, large) | |
| of moment(expression, big, significant, valuable) | |
| of note(expression, big, significant, valuable) | |
| of substance(expression, big, significant, valuable) | |
| ponderous(big, significant, valuable, vital) | |
| renowned(big, important, significant, large) | |
| salient(big, important, significant, valuable) | |
| solid gold(expression, big, important, significant) | |
| something(big, important, significant, large) | |
| something else(expression, big, important, significant) | |
| standout(big, significant, valuable, vital) | |
| super(big, important, significant, large) | |
| super-duper(big, important, significant, large) | |
| to the max(expression, idiom, big, important) |
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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> |