41 entries under dangerous topic. ×

28
toxic(adjective, help, heavy, foul, unhealthy)
25
venomous(adjective, help, mean, bad, nasty)
25
malignant(adjective, mean, bad, evil, nasty)
21
noxious(adjective, mean, bad, nasty, offensive)
20
deadly(adjective, bad, offensive, foul, disgusting)
19
lethal(adjective, bad, harmful, deadly)
16
fatal(adjective, harmful, deadly, lethal)
16
harmful(adjective, bad, evil, offensive, cruel)
14
destructive(adjective, bad, cruel, unkind, harmful)
14
nasty(adjective, mean, bad, taste, attitude)
13
injurious(adjective, mean, bad, evil, nasty)
12
mortal(adjective, harmful, deadly)
10
detrimental(adjective, mean, bad, nasty, offensive)
6
damaging(adjective, bad, evil, offensive, cruel)
3
life-threatening
3
severe(adjective, bad, offensive, foul, revolting)
3
wicked(adjective, mean, bad, evil, nasty)
2
critical
2
hazardous(adjective, harmful, injurious, detrimental)
2
menacing(adjective, threatening, injurious, damaging)
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APASmart Define. (2015). poisonous thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/poisonous/thesaurus/synonyms
ChicagoSmart Define. 2015. "poisonous thesaurus" https://smartdefine.org/poisonous/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, poisonous thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/poisonous/thesaurus/synonyms>.
MLASmart Define. "poisonous thesaurus" 19 August 2015. Web. 29 September 2026. <https://smartdefine.org/poisonous/thesaurus/synonyms>