- Definitions|2
- Thesaurus|1.1k
- Abbreviations|0
| crucial(adjective, heavy, significant, substantial) | |
| critical(adjective, bad, heavy, significant) | |
| heavy(bad, substantial, sober, serious) | |
| sober(heavy, substantial, serious, somber) | |
| somber(heavy, substantial, sober, serious) | |
| big deal(expression, heavy, substantial) | |
| bulky(heavy, substantial) | |
| burdensome(heavy, substantial) | |
| cumbersome(heavy, substantial) | |
| cumbrous(heavy, substantial) | |
| dense(heavy, substantial) | |
| fat(heavy, substantial) | |
| fleshy(heavy, substantial) | |
| forcible(heavy, substantial) | |
| heavyweight(heavy, substantial) | |
| hefty(heavy, substantial) | |
| life and death(expression, idiom, heavy, substantial) | |
| massive(heavy, substantial) | |
| no-nonsense(heavy, substantial, sober, serious) | |
| obese(heavy, substantial) |
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| APA | Smart Define. (2015). portentous thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/portentous/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "portentous thesaurus" https://smartdefine.org/portentous/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2015, portentous thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/portentous/thesaurus/synonyms>. |
| MLA | Smart Define. "portentous thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/portentous/thesaurus/synonyms> |