2
precarious(adjective, bad, heavy, insecure, dangerous)
2
redoubtable
2
risky(adjective, bad, heavy, insecure, dangerous)
2
serious(adjective, dangerous)
2
severe(adjective, hard, offensive, distressing, upsetting)
2
signaling
2
spooky
2
troubling(verb, adjective, hard, severe, offensive)
2
unpleasant(adjective, hard, severe, offensive, awful)
2
unstable(adjective, bad, heavy, insecure, danger)
2
warning(verb, warning)
2
wicked(adjective, dangerous)
1
Kafkaesque
1
abject
1
abominable
1
acute(adjective, dangerous)
1
adverse(adjective, arouse bad emotions)
1
advising(verb, warning)
1
affecting
1
aggressive
10 years ago|12k views|share |citing 
APASmart Define. (2016). alarming thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/alarming/thesaurus/synonyms
ChicagoSmart Define. 2016. "alarming thesaurus" https://smartdefine.org/alarming/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, alarming thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/alarming/thesaurus/synonyms>.
MLASmart Define. "alarming thesaurus" 3 April 2016. Web. 24 September 2026. <https://smartdefine.org/alarming/thesaurus/synonyms>