94 entries under severe topic. ×

6
formidable(adjective, hard, tough, evil)
6
unsound(adjective, delicate, awful, terrible)
5
fell(adjective, strong, tough, intense)
5
urgent(adjective, significant, serious, vital)
5
vicious(adjective, bad, strong, hard, wrong)
4
hard(adjective, tough, evil, rough)
4
malign(adjective, strong, hard, evil)
4
weighty(adjective, great, important, significant)
3
crucial(great, important, significant, serious)
3
ferocious(adjective, strong, hard, rough)
3
frightening(adjective, strong, intense, violent)
3
intense(adjective, strong, harsh, awful)
3
major(adjective, great, tough, unpleasant)
3
murderous(adjective, bad, strong, difficult)
3
troublesome(adjective, hard, evil, rough)
2
awful(adjective, bad, strong, offensive)
2
cruel(adjective, strong, hard, rough)
2
dreadful(adjective, tough, unpleasant, awful)
2
loathsome(adjective, bad, offensive, foul)
2
malevolent(adjective, bad, strong, intense)
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APASmart Define. (2016). dangerous thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/dangerous/thesaurus/synonyms
ChicagoSmart Define. 2016. "dangerous thesaurus" https://smartdefine.org/dangerous/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, dangerous thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/dangerous/thesaurus/synonyms>.
MLASmart Define. "dangerous thesaurus" 24 March 2016. Web. 26 September 2026. <https://smartdefine.org/dangerous/thesaurus/synonyms>