40 entries under devastating topic. ×

3
noxious(adjective, harmful, injurious, damaging, deadly)
2
consumptive(adjective, harmful, injurious, damaging, deadly)
2
internecine(adjective, harmful, injurious, damaging, deadly)
2
toxic(adjective, harmful, injurious, damaging, deadly)
2
wreckful(adjective, harmful, injurious, damaging, deadly)
1
annihilative(adjective, harmful, injurious, damaging, deadly)
1
cancerous(adjective, harmful, injurious, damaging, deadly)
1
cutthroat(adjective, harmful, injurious, damaging, deadly)
1
eradicative(adjective, harmful, injurious, damaging, deadly)
1
extirpative(adjective, harmful, injurious, damaging, deadly)
1
fell(adjective, harmful, injurious, damaging, deadly)
1
lethiferous(adjective, harmful, injurious, damaging, deadly)
1
mortal(adjective, grave, harmful, injurious, damaging)
1
noisome(adjective, harmful, injurious, damaging, deadly)
1
pestiferous(adjective, harmful, injurious, damaging, deadly)
1
pestilential(adjective, harmful, injurious, damaging, deadly)
1
slaughterous(adjective, harmful, injurious, damaging, deadly)
1
venomous(adjective, harmful, injurious, damaging, deadly)
1
wrackful(adjective, harmful, injurious, damaging, deadly)
0
feller(injurious, deadly, fatal)
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APASmart Define. (2015). catastrophic thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/catastrophic/thesaurus/synonyms
ChicagoSmart Define. 2015. "catastrophic thesaurus" https://smartdefine.org/catastrophic/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, catastrophic thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/catastrophic/thesaurus/synonyms>.
MLASmart Define. "catastrophic thesaurus" 13 April 2015. Web. 21 September 2026. <https://smartdefine.org/catastrophic/thesaurus/synonyms>