3
grisly
3
harmful(adjective, dangerous, arouse bad emotions)
3
nightmarish(adjective, frightening)
3
outrageous
3
panicking(verb, frightening)
3
treacherous(adjective, bad, heavy, unreliable, insecure)
3
troublesome(adjective, hard, severe, offensive, distressing)
3
unsafe(adjective, bad, heavy, insecure, dangerous)
3
upsetting(adjective, hard, tough, severe, uncertain)
3
worrisome(adjective, hard, severe, offensive, disturbing)
2
alarm
2
astounding(adjective, awful, terrible, disgusting, grand)
2
calamitous(adjective, arouse bad emotions)
2
cautioning(noun, verb, warning)
2
critical(adjective, dangerous)
2
demoralizing(adjective, scary)
2
depressing(adjective, hard, severe, offensive, gloomy)
2
discouraging(hard, severe, offensive, distressing, upsetting)
2
dismal
2
fateful(adjective, arouse bad emotions)
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APASmart Define. (2016). alarming thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/alarming/thesaurus/synonyms
ChicagoSmart Define. 2016. "alarming thesaurus" https://smartdefine.org/alarming/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, alarming thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/alarming/thesaurus/synonyms>.
MLASmart Define. "alarming thesaurus" 3 April 2016. Web. 20 September 2026. <https://smartdefine.org/alarming/thesaurus/synonyms>