- Definitions|2
- Thesaurus|2.5k
- Abbreviations|0
77 entries under serious topic. ×
| intense(adjective, quiet, severe, sharp, harsh) | |
| principal(adjective, great, big, important, significant) | |
| acute(adjective, severe, sharp, harsh, heavy) | |
| ad rem(expression, important, significant, substantial) | |
| big deal(expression, adjective, big, heavy, important) | |
| close(adjective, harsh, cruel, thoughtful, sober) | |
| constant(adjective, thoughtful, sober, sincere) | |
| determined(adjective, set, severe, honest, thoughtful) | |
| firm(adjective, strong, harsh, solid, important) | |
| fixed(adjective, firm, thoughtful, sober) | |
| for real(expression, adjective, solid, thoughtful, sober) | |
| funereal(dull, severe, dark, gloomy, sober) | |
| germane(important, substantial, applicable, pertinent) | |
| hazardous(adjective, heavy, significant, vital) | |
| intent(adjective, severe, honest, thoughtful, sober) | |
| life and death(expression, adjective, idiom, heavy, important) | |
| major-league(strong, great, important, powerful, large) | |
| mean business(expression, adjective, thoughtful, sober) | |
| perilous(adjective, heavy, significant, vital) | |
| playing hard ball(expression, adjective, idiom, tough, severe) |
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| APA | Smart Define. (2015). weighty thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/weighty/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "weighty thesaurus" https://smartdefine.org/weighty/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2015, weighty thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/weighty/thesaurus/synonyms>. |
| MLA | Smart Define. "weighty thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/weighty/thesaurus/synonyms> |