- Definitions|2
- Thesaurus|1.1k
- Abbreviations|0
| evil(adjective, black, baleful, bodeful) | |
| evil-boding(adjective, awful, fear, black, horror) | |
| evil boding(adjective, awful, fear, black, horror) | |
| fantastic | |
| fearful | |
| formidable(adjective, fear) | |
| grim(adjective, black, baleful, bodeful) | |
| horrible | |
| ill | |
| ill-starred | |
| ill boding(adjective, awful, fear, black, horror) | |
| ill omened(adjective, awful, fear, black, horror) | |
| inspiring(adjective, great, excellent, superb, super) | |
| lowering | |
| lurid(adjective, awful, fear, black, horror) | |
| minatory(adjective, threatening) | |
| pivotal | |
| presageful(adjective, awful, fear, black, horror) | |
| sinistrous(adjective, awful, fear, black, horror) | |
| sullen(adjective, awful, fear, black, horror) |
For more, visit
Portentous on
Power Thesaurus
| 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> |