130 entries under significant topic. ×
| renowned(adjective, strong, great, important, powerful) | |
| sensible(adjective, reasonable, fair, big) | |
| signal(vital, greatness, imperative) | |
| something(big, substantial, valuable, vital) | |
| something else(great, outstanding, marvelous, noble) | |
| standout(big, substantial, valuable, vital) | |
| super-duper(adjective, substantial, huge, tremendous) | |
| superabundant(abundant, flush, considerable, copious) | |
| to the max(expression, idiom, substantial) | |
| urgent(big, substantial, valuable, vital) | |
| valuable(adjective, strong, great, big, important) | |
| vital(big, substantial, valuable, imperative) | |
| apparent(substantial, definite, considerable) | |
| ascertainable(substantial, definite, considerable) | |
| big-deal | |
| central(vital, imperative) | |
| clear-cut(substantial, definite, considerable) | |
| comfortable(open, substantial, generous, extensive) | |
| critical(big, substantial, valuable, vital) | |
| crucial(big, substantial, valuable, vital) |
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| APA | Smart Define. (2016). large thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/large/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "large thesaurus" https://smartdefine.org/large/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, large thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/large/thesaurus/synonyms>. |
| MLA | Smart Define. "large thesaurus" 29 March 2016. Web. 24 September 2026. <https://smartdefine.org/large/thesaurus/synonyms> |