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100 Best Synonyms for “Alarming”

August 30, 2026

100 Best Synonyms for

No. Item Definition
1. acute severe and urgent
2. agitating causing nervous excitement
3. anxiety-provoking causing anxiety
4. appalling deeply shocking or upsetting
5. arresting striking and hard to ignore
6. astonishing very surprising or shocking
7. awful very bad or distressing
8. baleful threatening harm or evil
9. belligerent hostile and threatening
10. bleak without hope; worrying
11. breathtaking astonishing in a shocking way
12. brutal harsh and shocking
13. calamitous bringing disaster or misery
14. catastrophic causing great damage or disaster
15. chaotic full of confusion and danger
16. charged full of tension
17. chilling causing fear or dread
18. concerning causing concern
19. creepy causing uneasy fear
20. critical dangerously serious
21. dangerous likely to cause harm
22. deadly likely to cause death
23. devastating causing severe shock or damage
24. dicey risky or uncertain
25. dire extremely serious or urgent
26. disastrous extremely harmful or bad
27. disconcerting making someone feel unsettled
28. disquieting causing anxiety or unease
29. disturbing causing unease or concern
30. dreadful causing great fear or worry
31. eerie strangely frightening
32. explosive likely to erupt violently
33. eye-opening surprisingly revealing and unsettling
34. fear-inducing likely to cause fear
35. fearsome inspiring fear
36. ferocious violently aggressive and frightening
37. fierce violent or threatening
38. foreboding suggesting future trouble
39. fraught filled with worry or danger
40. frightening causing fear or worry
41. frightful very scary or upsetting
42. ghastly frighteningly bad or shocking
43. gloomy causing sadness or worry
44. grave seriously worrying
45. grim bleak and worrying
46. grisly causing horror or disgust
47. hair-raising very frightening
48. hairy dangerous or difficult
49. harrowing extremely distressing
50. haunting remaining disturbingly in mind
51. hazardous involving risk or danger
52. horrendous extremely horrible or shocking
53. horrifying causing horror or shock
54. imminent about to happen soon
55. impending about to happen
56. inflammatory likely to provoke strong reaction
57. intimidating making people feel afraid
58. jolting causing sudden shock
59. looming appearing likely very soon
60. macabre disturbingly related to death
61. menacing suggesting danger or threat
62. nerve-racking causing intense anxiety
63. nightmarish like a terrible nightmare
64. offensive causing upset or shock
65. ominous suggesting something bad ahead
66. panic-inducing likely to cause panic
67. perilous full of danger
68. portentous signaling something serious ahead
69. precarious dangerously unstable
70. problematic causing difficulty or concern
71. risky involving possible danger
72. rocky full of difficulties or danger
73. rough difficult and troubling
74. ruinous causing severe harm
75. savage fierce and frightening
76. scary causing fear
77. serious causing important concern
78. shocking very upsetting or surprising
79. sickening deeply upsetting or disgusting
80. sinister seeming evil or harmful
81. spine-chilling causing sudden fear
82. startling causing surprise or alarm
83. tense causing nervous strain
84. terrifying causing extreme fear
85. thorny difficult and worrying
86. threatening suggesting danger or harm
87. touch-and-go uncertain and risky
88. troubling causing distress or concern
89. tumultuous full of disorder and tension
90. turbulent unstable and troubled
91. uncanny strangely unsettling or eerie
92. unnerving making someone feel uneasy
93. unsafe not safe
94. unsettling making people feel uneasy
95. upsetting causing emotional distress
96. urgent needing immediate attention
97. volatile likely to become dangerous
98. weird strangely unsettling
99. worrisome causing worry
100. worrying causing concern
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