- Definitions|2
- Thesaurus|1.1k
- Abbreviations|0
181 entries under adjective topic. ×
| dangerous(hazardous, troubling) | |
| earth-shaking | |
| evocative | |
| fated(exciting, foreboding) | |
| high-priority | |
| imminent | |
| jeopardous | |
| laden | |
| looming | |
| louring | |
| minatorial | |
| moving | |
| of concern | |
| parlous | |
| predetermined | |
| puffed-up | |
| rare | |
| signal | |
| stimulating | |
| tall |
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| APA | Smart Define. (2015). portentous thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/portentous/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "portentous thesaurus" https://smartdefine.org/portentous/thesaurus/synonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2015, portentous thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/portentous/thesaurus/synonyms>. |
| MLA | Smart Define. "portentous thesaurus" 10 April 2015. Web. 30 September 2026. <https://smartdefine.org/portentous/thesaurus/synonyms> |