| helpless | |
| hinting(verb, adjective) | |
| impenetrable | |
| in the wind(expression, idiom, likely, possible, immediate) | |
| infernal(adjective, evil, mysterious, nefarious, spooky) | |
| injurious(adjective, dangerous) | |
| instant(near, coming, forthcoming, intended, designed) | |
| labored | |
| lethal(adjective, risky, dangerous, unsafe) | |
| moody | |
| mysterious(adjective, evil, nefarious, spooky) | |
| odious(adjective, person, tough, offensive, dark) | |
| overweight | |
| pessimistic(hard, severe, offensive, distressing, upsetting) | |
| ponderous | |
| profound | |
| shadowy | |
| shady | |
| shocking(adjective, tough, difficult, offensive, unpleasant) | |
| sinful(adjective, evil, mysterious, nefarious, spooky) |
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| APA | Smart Define. (2016). threatening thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/threatening/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "threatening thesaurus" https://smartdefine.org/threatening/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2016, threatening thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/threatening/thesaurus/synonyms>. |
| MLA | Smart Define. "threatening thesaurus" 23 March 2016. Web. 22 September 2026. <https://smartdefine.org/threatening/thesaurus/synonyms> |