| nasty(adjective, severe, violent, wild, fierce) |
| pungent(adjective, strong, severe, sharp, passionate) |
| strenuous(adjective, strong, tough, difficult, harsh) |
| tormenting(adjective, severe, distressing, disturbing, endured) |
| torrid(adjective, passionate, excited, hot, fierce) |
| torturous(adjective, severe, distressing, disturbing, endured) |
| unbearable(adjective, severe, overwhelming, endured, agonizing) |
| abominable(adjective, wicked, endured) |
| aggressive(adjective, clear, tough, severe, keen) |
| agog(adjective, strong, keen, passionate, enthusiastic) |
| anxious(adjective, strong, keen, energetic, enthusiastic) |
| assiduous |
| blazing(adjective, strong, light, keen, bright) |
| cold(adjective, cool, complete, severe, keen) |
| deplorable(adjective, wicked, endured) |
| determined(adjective, clear, tough, severe, keen) |
| distressing(adjective, moving, wicked, emotional, touching) |
| evil(adjective, wicked, endured) |
| fanatical(adjective, strong, severe, keen, energetic) |
| foul(adjective, wicked, endured) |