| solid gold(expression, important, substantial, large) | |
| something(important, substantial, large, valuable) | |
| something else(expression, adjective, unusual, important) | |
| standout(outstanding, substantial, valuable, vital) | |
| super-duper(important, substantial, large) | |
| to the max(expression, idiom, important, substantial) | |
| underlined(adjective, unusual, heavy, important) | |
| unreal(adjective, superior, unusual, important) | |
| venerable(important, substantial, large) | |
| big deal(expression, heavy, substantial) | |
| bulky(heavy, substantial, large, considerable) | |
| burdensome(heavy, substantial) | |
| cumbersome(heavy, substantial) | |
| cumbrous(heavy, substantial) | |
| dense(heavy, substantial) | |
| fleshy(heavy, substantial) | |
| life and death(expression, idiom, great, heavy) | |
| no-nonsense(heavy, substantial) | |
| obese(heavy, substantial) | |
| overweight(heavy, substantial) |
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| APA | Smart Define. (2016). significant thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/significant/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "significant thesaurus" https://smartdefine.org/significant/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2016, significant thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/significant/thesaurus/synonyms>. |
| MLA | Smart Define. "significant thesaurus" 4 March 2016. Web. 25 September 2026. <https://smartdefine.org/significant/thesaurus/synonyms> |