3
toxicity(pollution, taint, contamination, insalubrity)
3
twist(verb, influence, sway, bias, slant)
3
ulcer(verb, ruin, corrupt, blight)
3
venin(noun, substance, growth, death, tumor)
3
venomousness
2
antimony(noun, substance, staff, chemistry, bane)
2
cyanide
2
sully(verb, hurt, spoil, dirty, corrupt)
2
abase
2
acerbate(verb, upset, harm, sour, alienate)
2
adulteration(noun, substance, death)
2
adversity(noun, difficulty, informal, situation, hardship)
2
afflict
2
affliction(noun, trouble, ruin, difficulty, burden)
2
annihilate(verb, get, hit, destroy, kill)
2
bad(adjective, evil, offensive, corrupt, foul)
2
benumb(verb, fix, hit, drug, blunt)
2
blighted
2
calamity(noun, trouble, ruin, difficulty, burden)
2
communicability(pollution, taint, contamination)
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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>