39 entries under harmful topic. ×

10
calamitous(adjective, dreadful, injurious, damaging)
10
deadly(adjective, bad, evil, destruction, grim)
10
disastrous(adjective, dreadful, unfortunate, injurious)
9
ruinous(adjective, bad, severe, intense, destruction)
9
damaging(adjective, bad, evil, injurious)
7
catastrophic(adjective, dreadful, unfortunate, injurious)
7
annihilative(adjective, injurious, damaging, deadly)
7
cataclysmic(adjective, dreadful, unfortunate, injurious)
7
fatal(adjective, bad, evil, wicked, dreadful)
7
suicidal(adjective, destruction, injurious, damaging)
5
baneful(adjective, injurious, damaging, deadly)
5
deleterious(adjective, bad, evil, wicked)
5
detrimental(adjective, bad, evil, wicked)
5
pernicious(adjective, bad, evil, wicked, dreadful)
4
consumptive(adjective, injurious, damaging, deadly)
4
injurious(adjective, bad, evil, wicked)
3
baleful(adjective, sad, sorrow, depression, woe)
3
internecine(adjective, injurious, damaging, deadly)
3
lethal(adjective, bad, evil, grim)
2
dire(adjective, dreadful, unfortunate, injurious)
<12>
11 years ago|9.6k views|share |citing 
APASmart Define. (2015). devastating thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/devastating/thesaurus/synonyms
ChicagoSmart Define. 2015. "devastating thesaurus" https://smartdefine.org/devastating/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, devastating thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/devastating/thesaurus/synonyms>.
MLASmart Define. "devastating thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/devastating/thesaurus/synonyms>