9
foul(verb, adjective, bad, hurt, harm)
9
hate(noun, hatred, hostility, antipathy, spite)
9
ruin(noun, verb, activity, trouble, spoil)
8
pervert(verb, action, act, ruin, harm)
8
spike(verb, hurt, damage, harm, dirty)
8
ill will(noun, expression, hatred, hate, hostility)
8
malevolence(noun, hatred, hate, hostility, antipathy)
8
maliciousness(noun, hatred, hate, hostility, antipathy)
8
miasma(noun, thing, substance, death, bane)
8
spite(noun, hatred, hate, hostility, antipathy)
7
defile(verb, clean, corrupt, foul, stain)
7
prejudice(verb, information, influence, informal, sway)
7
befoul(verb, foul, soil, pollute, contaminate)
7
deprave(verb, action, act, hurt, ruin)
7
bias(verb, information, influence, harm, hinder)
7
debauch(verb, action, act, ruin, harm)
7
embitter(verb, upset, ruin, harm, corrupt)
7
murder(verb, adjective, action, get, hit)
7
spitefulness(noun, hatred, hate, hostility, antipathy)
7
virulent(adjective, help, poisonous, lethal)
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APASmart Define. (2016). poison thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/poison/thesaurus/synonyms
ChicagoSmart Define. 2016. "poison thesaurus" https://smartdefine.org/poison/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, poison thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/poison/thesaurus/synonyms>.
MLASmart Define. "poison thesaurus" 19 February 2016. Web. 25 September 2026. <https://smartdefine.org/poison/thesaurus/synonyms>