1
horrid(adjective, evil, dislike, disgusting, beastly)
1
importune
1
indisposed(adjective, diseased)
1
infective(adjective, unhealthy, unwholesome, catching, virulent)
1
infirm(adjective, diseased)
1
inflicted(adjective, diseased)
1
insalutary(harmful, poisonous, toxic)
1
lousy(adjective, evil, dislike, disgusting, beastly)
1
maddening
1
mephitic
1
miasmic(adjective, catching, virulent, toxic, spreading)
1
morbiferous
1
morbific
1
murderer
1
narcotic
1
nauseous(adjective, diseased)
1
nettling
1
pathological(adjective, unhealthy)
1
perversive
1
pesty
11 years ago|7.7k views|share |citing 
APASmart Define. (2015). pestilent thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/pestilent/thesaurus/synonyms
ChicagoSmart Define. 2015. "pestilent thesaurus" https://smartdefine.org/pestilent/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, pestilent thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/pestilent/thesaurus/synonyms>.
MLASmart Define. "pestilent thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/pestilent/thesaurus/synonyms>