135 entries under adjective topic. ×

35
deadly(bad, evil, live, harmful)
35
fatal(bad, evil, live, harmful)
25
mortal(bad, evil, live, harmful)
19
malignant(dangerous, deadly, diseased)
17
poisonous(bad, harmful, dangerous, deadly)
17
toxic(bad, evil, harmful, dangerous)
16
deathly(live, dangerous, deadly)
15
harmful(bad, evil, risky, dangerous)
15
pernicious(bad, evil, harmful, injurious)
14
destructive(bad, harmful, dangerous, injurious)
14
virulent(rotten, harmful, deadly, fatal)
13
noxious(bad, evil, harmful, dangerous)
12
pestilent(harmful, dangerous, deadly, fatal)
11
baleful(bad, evil, harmful, injurious)
11
murderous(difficult, deadly)
11
terminal(deadly, final)
11
venomous(bad, evil, hateful, rotten)
10
baneful(bad, evil, harmful, injurious)
10
dangerous(bad, rotten, deadly, fatal)
10
fateful
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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>