72 entries under damaging topic. ×

10
mischievous(adjective, mean, bad, nasty, offensive)
10
venomous(adjective, mean, bad, evil, nasty)
9
corrupting(adjective, immoral, distressing, harmful, injurious)
9
fatal(adjective, bad, evil, harmful, dangerous)
9
ruinous(adjective, mean, bad, wrong, evil)
8
pestiferous(adjective, bad, evil, harmful, injurious)
8
prejudicial(adjective, cruel, unkind, distressing, upsetting)
6
suicidal(adjective, violent, cruel, harmful, injurious)
5
malefic(adjective, negative, harmful, injurious)
4
dire(adjective, harmful, injurious, deadly)
4
malicious(adjective, mean, bad, wrong, evil)
4
painful(adjective, bad, offensive, foul, revolting)
3
catastrophic(adjective, harmful, injurious, deadly)
3
mortal(adjective, bad, evil, harmful, dangerous)
2
cancerous(adjective, harmful, injurious, deadly)
2
corroding(injurious, destructive)
2
crippling(adjective, harmful, injurious, destructive)
2
disastrous(adjective, harmful, injurious, deadly)
2
distressing(cruel, unkind, upsetting, harmful)
2
iniquitous(evil, shameful, distressing, harmful, depraved)
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APASmart Define. (2015). noxious thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/noxious/thesaurus/synonyms
ChicagoSmart Define. 2015. "noxious thesaurus" https://smartdefine.org/noxious/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, noxious thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/noxious/thesaurus/synonyms>.
MLASmart Define. "noxious thesaurus" 17 July 2015. Web. 23 September 2026. <https://smartdefine.org/noxious/thesaurus/synonyms>