9
sad(adjective, awful, terrible, miserable, wretched)
9
unpropitious(adjective, bad, poor, corrupt, negative)
8
adverse(adjective, bad, poor, awkward, adversity)
8
awful(adjective, sad, unhappy, unpleasant, terrible)
8
deadly(adjective, sad, painful, suffering, dreadful)
8
distressing(adjective, severe, sad, unhappy, unpleasant)
8
dreadful(adjective, sad, unhappy, unpleasant, awful)
8
lamentable(adjective, terrible, miserable, wretched, unfortunate)
7
bad(adjective, evil, sad, unhappy, unpleasant)
7
baleful(adjective, harmful, injurious, damaging, deadly)
7
damaging(adjective, bad, severe, unhappy, awful)
7
pernicious(adjective, bad, wicked, immoral, dreadful)
6
deleterious(adjective, harmful, injurious, damaging, deadly)
6
grim(adjective, sad, unhappy, awful, terrible)
6
heartbreaking(adjective, sad, unhappy, unpleasant, awful)
6
ill(adjective, negative, disapproving, uncomplimentary, arouse bad emotions)
6
inauspicious(adjective, miserable, negative, wretched, adverse)
6
regrettable(adjective, wrong, miserable, wretched, unfortunate)
6
unfavorable(adjective, bad, miserable, adverse, unfortunate)
5
cataclysmal(adjective, help, unfortunate, destructive, unsuccessful)
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APASmart Define. (2016). calamitous thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/calamitous/thesaurus/synonyms
ChicagoSmart Define. 2016. "calamitous thesaurus" https://smartdefine.org/calamitous/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, calamitous thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/calamitous/thesaurus/synonyms>.
MLASmart Define. "calamitous thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/calamitous/thesaurus/synonyms>