25 entries under bad topic. ×

35
deadly(adjective, evil, live, harmful)
35
fatal(adjective, evil, live, harmful)
25
mortal(adjective, evil, live, harmful)
17
poisonous(adjective, harmful, dangerous, deadly)
17
toxic(adjective, evil, harmful, dangerous)
15
harmful(adjective, evil, risky, dangerous)
15
pernicious(adjective, evil, harmful, injurious)
14
destructive(adjective, harmful, dangerous, injurious)
13
noxious(adjective, evil, harmful, dangerous)
11
baleful(adjective, evil, harmful, injurious)
11
venomous(adjective, evil, hateful, rotten)
10
baneful(adjective, evil, harmful, injurious)
10
dangerous(adjective, rotten, deadly, fatal)
8
hurtful(adjective, evil, harmful, injurious)
8
injurious(adjective, harmful, dangerous, damaging)
7
deleterious(adjective, evil, harmful, injurious)
7
detrimental(adjective, evil, harmful, dangerous)
6
damaging(adjective, harmful, dangerous, injurious)
5
ruinous(adjective, harmful, injurious, damaging)
4
devastating(adjective, evil, grim, harmful)
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APASmart Define. (2015). lethal thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/lethal/thesaurus/synonyms
ChicagoSmart Define. 2015. "lethal thesaurus" https://smartdefine.org/lethal/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, lethal thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/lethal/thesaurus/synonyms>.
MLASmart Define. "lethal thesaurus" 17 July 2015. Web. 20 September 2026. <https://smartdefine.org/lethal/thesaurus/synonyms>