| fearful(adjective, awful, terrible, wonderful, fear) |
| grim(adjective, arouse bad emotions) |
| horrid(adjective, awful, fear) |
| petrifying(verb, adjective, frightening) |
| fearsome(adjective, awful, wonderful, grand, shocking) |
| harrowing(verb, adjective, frightening) |
| horrendous(adjective, unpleasant, awful, terrible, foul) |
| scaring(verb, frightening) |
| alerting(verb, warning) |
| atrocious(adjective, evil, obscure, offensive, awful) |
| chilling(adjective, terrible, shocking, distressing, upsetting) |
| dangerous(adjective, bad, menacing, intimidating, hazardous) |
| menacing(adjective, dangerous) |
| creepy(adjective, hard, severe, offensive, awful) |
| disconcerting(adjective, hard, severe, offensive, distressing) |
| disquieting(adjective, hard, severe, offensive, upsetting) |
| hair-raising(adjective, shocking, upsetting, disturbing, intimidating) |
| horrific(adjective, fear) |
| intimidating(verb, adjective, awful, terrible, wonderful) |
| ominous(adjective, hard, severe, offensive, upsetting) |