- Definitions|2
- Thesaurus|1.1k
- Abbreviations|0
181 entries under adjective topic. ×
| formidable | |
| grim(black, baleful, bodeful) | |
| ill-starred | |
| ill boding(awful, fear, black, horror) | |
| ill omened(awful, fear, black, horror) | |
| inspiring(great, excellent, superb, super) | |
| lowering | |
| lurid(awful, fear, black, horror) | |
| minatory | |
| pivotal | |
| presageful(awful, fear, black, horror) | |
| sinistrous(awful, fear, black, horror) | |
| sullen(awful, fear, black, horror) | |
| untoward | |
| affecting(great, excellent, superb, super) | |
| apocalyptical(warn, luck, prophetical) | |
| decisive | |
| doomed(exciting, foreboding) | |
| frightful | |
| hellfire(warn, luck, fateful) |
For more, visit
Portentous on
Power Thesaurus
| 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> |