1. Startling
2. Frightening
3. Terrifying
4. Appalling
5. Chilling
6. Horrifying
7. Dire
8. Distressing
9. Direful
10. Panic-Stricken
11. Direful
12. Dreadful
13. Dire
14. Dire
15. Panic
16. Dread
17. Fearful
18. Frightful
19. Direful
20. Horrendous
21. Menacing
22. Nerve-Racking
23. Ominous
24. Redoubtable
25. Scary
26. Shocking
27. Direful
28. Sinister
29. Threatening
30. Uneasy

Searching for synonyms of the word “alarming” can be a daunting task. It’s important to find the right words that convey the same meaning and emotion as the original word. To help you out, we’ve compiled a list of the best 30 ideas for synonyms of “alarming”. These include startling, frightening, terrifying, appalling, chilling, horrifying, dire, distressing, direful, panic-stricken, dreadful, fearful, frightful, horrendous, menacing, nerve-racking, ominous, redoubtable, scary, shocking, sinister, threatening, and uneasy. With this list, you’ll be able to find the perfect synonym for “alarming” for any situation. Whether you’re writing a story, a blog post, or a report, you’ll be able to find the right word to express your thoughts. So, the next time you’re searching for a synonym for “alarming”, you’ll have plenty of ideas to choose from.