| urgent(adjective, severe, firm, prompt, big) |
| abysmal(adjective, awful, terrible, horrible, afraid) |
| afflictive(adjective, hard, severe, tender, unpleasant) |
| awed |
| brutal(adjective, unpleasant, terrible, vicious, wicked) |
| chronic(adjective, awful, terrible, horrible, afraid) |
| dangerous(adjective, significant, serious, vital, menacing) |
| daunting |
| ferocious(adjective, awful, terrible, horrible, afraid) |
| intimidating |
| intolerable(adjective, endured) |
| noxious(adjective, harmful, injurious, damaging, deadly) |
| pitiful |
| saddening(adjective, sickness, ache, anguishes) |
| spooky(adjective, black, baleful, bodeful) |
| tedious(adjective, sickness, ache, anguishes) |
| towering(adjective, awful, terrible, horrible, afraid) |
| troublesome(adjective, sickness, ache, anguishes) |
| ugly(adjective, terrible, ominous) |
| unpropitious(threatening, unfortunate, menacing, unfavorable, intimidating) |