- Definitions|2
- Thesaurus|1.1k
- Abbreviations|0
40 entries under notable topic. ×
| fateful(adjective, importance, significant, valuable, black) | |
| serious(adjective, importance, valuable, main) | |
| momentous(adjective, importance, valuable, main) | |
| consequential(adjective, importance, valuable, main) | |
| remarkable(adjective, extraordinary, importance, valuable, main) | |
| weighty(adjective, importance, important, serious, valuable) | |
| grave(adjective, importance, valuable, main) | |
| significant(adjective, importance, valuable, main) | |
| important(adjective, importance, valuable, main, exciting) | |
| solemn(adjective, quiet, great, excellent, importance) | |
| impressive(adjective, importance, valuable, main) | |
| earnest(adjective, importance, valuable, main) | |
| material(adjective, importance, valuable, main) | |
| substantial(adjective, importance, valuable, main) | |
| vital(adjective, importance, valuable, main) | |
| haughty(adjective, importance, valuable, main) | |
| big(adjective, importance, valuable, main) | |
| exciting(adjective, importance, valuable, main) | |
| grand(adjective, importance, valuable, main) | |
| big-league(adjective, importance, valuable, main) |
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| APA | Smart Define. (2015). portentous thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/portentous/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "portentous thesaurus" https://smartdefine.org/portentous/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2015, portentous thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/portentous/thesaurus/synonyms>. |
| MLA | Smart Define. "portentous thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/portentous/thesaurus/synonyms> |