| courageous | |
| crabbed(adjective, delicate, sensitive, tricky, impatient) | |
| cranky(adjective, delicate, sensitive, tricky, impatient) | |
| crazy | |
| criminal(adjective, wicked) | |
| critic | |
| cross(adjective, delicate, sensitive, tricky, impatient) | |
| crucial(adjective, heavy, significant, serious, vital) | |
| cruel(adjective, wicked) | |
| danger | |
| daredevil | |
| deadly(adjective, dangerous) | |
| death-defying(adjective, dangerous) | |
| deathly(adjective, dangerous) | |
| debased(adjective, wicked) | |
| defenseless(unstable, vulnerable, dangerous, unprotected, precarious) | |
| deleterious(harmful, injurious, detrimental) | |
| deplorable(adjective, wicked) | |
| depraved(adjective, wicked) | |
| despicable(adjective, wicked) |
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| APA | Smart Define. (2015). hazardous thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/hazardous/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "hazardous thesaurus" https://smartdefine.org/hazardous/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, hazardous thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/hazardous/thesaurus/synonyms>. |
| MLA | Smart Define. "hazardous thesaurus" 19 August 2015. Web. 24 September 2026. <https://smartdefine.org/hazardous/thesaurus/synonyms> |