11
baleful(adjective, awful, fear, black, horror)
11
grievous(adjective, sad, unhappy, awful, terrible)
10
baneful(adjective, bad, wicked, immoral, malicious)
10
detrimental(adjective, adverse, harmful, injurious, damaging)
10
dreadful(adjective, severe, awful, terrible, extreme)
10
ill(adjective, unfortunate, arouse bad feelings)
10
sad(adjective, unhappy, sorrowful, distressing, unfortunate)
9
deadly(adjective, sad, painful, suffering, dreadful)
9
bad(adjective, severe, evil, sad, extreme)
9
deplorable(adjective, bad, poor, awful, awkward)
9
hapless(adjective, bad, miserable, unfortunate, doomed)
9
untoward(adjective, miserable, adversity, adverse, unfortunate)
8
damaging(adjective, bad, unhappy, inappropriate, adverse)
8
deleterious(adjective, harmful, injurious, damaging, deadly)
8
devastating(adjective, dreadful, harmful, unfortunate, injurious)
8
ill-fated(adjective, miserable, unfortunate, doomed, detrimental)
8
injurious(adjective, bad, wicked, immoral, malicious)
8
unfavorable(adjective, miserable, adverse, unfortunate, doomed)
8
unpropitious(adjective, bad, adverse, unfortunate, detrimental)
7
distressing(adjective, sad, unhappy, awful, terrible)
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APASmart Define. (2016). disastrous thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/disastrous/thesaurus/synonyms
ChicagoSmart Define. 2016. "disastrous thesaurus" https://smartdefine.org/disastrous/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, disastrous thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/disastrous/thesaurus/synonyms>.
MLASmart Define. "disastrous thesaurus" 24 March 2016. Web. 23 September 2026. <https://smartdefine.org/disastrous/thesaurus/synonyms>