23 entries under toxic topic. ×

10
pestiferous(adjective, harmful, dangerous, fatal, poisonous)
8
poisonous(adjective, unhealthy, harmful, deadly, fatal)
7
lethal(adjective, harmful, dangerous, deadly, fatal)
4
deleterious(adjective, harmful, dangerous, fatal, poisonous)
4
hurtful(adjective, harmful, poisonous)
4
insalubrious(adjective, unhealthy, harmful, poisonous)
4
noisome(harmful, poisonous, insalubrity)
4
unwholesome(adjective, unhealthy, harmful, poisonous, virulent)
4
venomous(adjective, unhealthy, harmful, fatal, unwholesome)
3
detrimental(adjective, harmful, dangerous, poisonous)
2
corrupting(adjective, harmful, dangerous, catching, poisonous)
2
sickly(adjective, harmful, diseased, poisonous)
1
dangerous(harmful, fatal, poisonous, lethal)
1
foul(harmful, poisonous)
1
infective(adjective, unhealthy, unwholesome, catching, virulent)
1
insalutary(harmful, poisonous)
1
miasmic(adjective, catching, virulent, spreading)
0
fetid(harmful, poisonous)
0
putrid(harmful, poisonous)
0
spoiled(harmful, poisonous)
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APASmart Define. (2015). pestilent thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/pestilent/thesaurus/synonyms
ChicagoSmart Define. 2015. "pestilent thesaurus" https://smartdefine.org/pestilent/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, pestilent thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/pestilent/thesaurus/synonyms>.
MLASmart Define. "pestilent thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/pestilent/thesaurus/synonyms>