1
corruptive
1
cursed
1
deadlier
1
death-bringing
1
death-dealing
1
deathful
1
debased
1
degenerate(adjective, evil, nasty, harsh, vicious)
1
demoniac(adjective, evil, nasty, harsh, vicious)
1
deplorable
1
depraved(adjective, bad, evil, nasty, harsh)
1
despicable
1
despiteful(adjective, mean, nasty, negative, vicious)
1
detestable
1
diabolic
1
dire(adjective, evil, nasty, dreadful, harmful)
1
disgusting
1
elusive
1
eradicative(adjective, harmful, injurious, damaging, deadly)
1
excruciating(adjective, evil, nasty, harsh, vicious)
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APASmart Define. (2016). pernicious thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/pernicious/thesaurus/synonyms
ChicagoSmart Define. 2016. "pernicious thesaurus" https://smartdefine.org/pernicious/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, pernicious thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/pernicious/thesaurus/synonyms>.
MLASmart Define. "pernicious thesaurus" 24 March 2016. Web. 25 September 2026. <https://smartdefine.org/pernicious/thesaurus/synonyms>