- Definitions|2
- Thesaurus|1.1k
- Abbreviations|0
181 entries under adjective topic. ×
| menacing(black, ominous, baleful, bodeful) | |
| prodigious | |
| earnest(importance, valuable, main, notable) | |
| material(importance, valuable, main, notable) | |
| substantial(importance, valuable, main, notable) | |
| vital(importance, valuable, main, notable) | |
| astounding(extraordinary, exciting, foreboding) | |
| crucial(big, heavy, significant, substantial) | |
| haughty(importance, valuable, main, notable) | |
| phenomenal(extraordinary, exciting, foreboding) | |
| baleful(awful, fear, black, horror) | |
| big(importance, valuable, main, notable) | |
| exciting(importance, valuable, main, notable) | |
| eye-opening(astonishing, awful, amazing, shocking) | |
| grand(importance, valuable, main, notable) | |
| ill-boding(awful, fear, black, exciting) | |
| meaningful(importance, main, extremely significant) | |
| big-league(importance, valuable, main, notable) | |
| big shot(importance, valuable, main, notable) | |
| bigwig(importance, valuable, main, notable) |
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| APA | Smart Define. (2015). portentous thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/portentous/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "portentous thesaurus" https://smartdefine.org/portentous/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2015, portentous thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/portentous/thesaurus/synonyms>. |
| MLA | Smart Define. "portentous thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/portentous/thesaurus/synonyms> |