41 entries under bad topic. ×

12
pernicious(adjective, evil, harmful, injurious)
12
pestilential(adjective, evil, harmful, injurious)
10
baneful(adjective, evil, harmful, injurious)
9
harmful(adjective, injurious, damaging, deadly)
9
noxious(adjective, evil, harmful, injurious)
8
deleterious(adjective, evil, harmful, injurious)
8
noisome(adjective, evil, offensive, immoral)
7
destructive(adjective, harmful, injurious, noxious)
7
toxic(adjective, evil, harmful, injurious)
6
poisonous(adjective, offensive, foul, disgusting)
5
damaging(adjective, harmful, injurious, deadly)
5
injurious(adjective, foul, vile, harmful)
4
deadly(adjective, evil, harmful, injurious)
4
venomous(adjective, evil, harmful, injurious)
3
detrimental(adjective, evil, harmful, injurious)
3
loathsome(adjective, nasty, offensive, terrible)
3
malignant(adjective, injurious, damaging, deadly)
2
baleful(adjective, evil, harmful, injurious)
2
foul(adjective, nasty, offensive, terrible)
2
hurtful(adjective, evil, harmful, injurious)
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APASmart Define. (2015). pestiferous thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/pestiferous/thesaurus/synonyms
ChicagoSmart Define. 2015. "pestiferous thesaurus" https://smartdefine.org/pestiferous/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, pestiferous thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/pestiferous/thesaurus/synonyms>.
MLASmart Define. "pestiferous thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/pestiferous/thesaurus/synonyms>