- Definitions|2
- Thesaurus|1.1k
- Abbreviations|0
181 entries under adjective topic. ×
| fateful(importance, significant, valuable, black) | |
| serious(importance, valuable, main, notable) | |
| inauspicious(awful, fear, black, exciting) | |
| momentous(importance, valuable, main, notable) | |
| consequential(importance, valuable, main, notable) | |
| ominous(exciting, foreboding, warn, luck) | |
| remarkable(extraordinary, importance, valuable, main) | |
| weighty(importance, important, serious, valuable) | |
| grave(importance, valuable, main, notable) | |
| significant(importance, valuable, main, notable) | |
| important(importance, valuable, main, exciting) | |
| solemn(quiet, great, excellent, importance) | |
| amazing(extraordinary, astonishment, exciting, foreboding) | |
| foreboding(black, ominous, baleful, bodeful) | |
| dire(terrible, fear, black, warn) | |
| pompous(importance, main, arrogant, extremely significant) | |
| sinister(nasty, black, menacing, baleful) | |
| threatening(exciting, foreboding, ominous) | |
| gloomy(awful, fear, black, horror) | |
| impressive(importance, valuable, main, notable) |
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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> |