40 entries under devastating topic. ×

27
disastrous(adjective, help, sad, unhappy, awful)
25
ruinous(adjective, help, awful, terrible, painful)
21
calamitous(adjective, help, sad, unhappy, awful)
21
destructive(adjective, help, grave, unfortunate, injurious)
20
cataclysmic(adjective, help, awful, terrible, miserable)
15
fatal(adjective, help, painful, suffering, dreadful)
14
dire(adjective, awful, terrible, miserable, painful)
12
harmful(adjective, dreadful, unfortunate, injurious, damaging)
11
detrimental(adjective, adverse, harmful, injurious, damaging)
11
injurious(adjective, harmful, damaging, deadly, destructive)
10
deadly(adjective, sad, awful, painful, suffering)
9
damaging(adjective, harmful, injurious, deadly, destructive)
9
deleterious(adjective, harmful, injurious, damaging, deadly)
6
suicidal(adjective, harmful, injurious, damaging, deadly)
5
baneful(adjective, grave, harmful, injurious, damaging)
5
pernicious(adjective, dreadful, harmful, injurious, damaging)
4
evil(adjective, harmful, injurious, damaging, deadly)
3
baleful(adjective, harmful, injurious, damaging, deadly)
3
hurtful(adjective, harmful, injurious, damaging, deadly)
3
lethal(adjective, grave, harmful, injurious, damaging)
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APASmart Define. (2015). catastrophic thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/catastrophic/thesaurus/synonyms
ChicagoSmart Define. 2015. "catastrophic thesaurus" https://smartdefine.org/catastrophic/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, catastrophic thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/catastrophic/thesaurus/synonyms>.
MLASmart Define. "catastrophic thesaurus" 13 April 2015. Web. 20 September 2026. <https://smartdefine.org/catastrophic/thesaurus/synonyms>