| exceptional |
| forceful(adjective, prevailing, influential, commanding) |
| gargantuan |
| grave(adjective, tough, severe, difficult, unpleasant) |
| hair-raising(adjective, awful, terrible, shocking, dreadful) |
| hearty |
| hideous(adjective, bad, awful, terrible, disgusting) |
| high(adjective, lofty, tall, elevated, towering) |
| horrid(appearance, awful, terrible, fear, disgusting) |
| incredible |
| mean(adjective, bad, severe, rough, nasty) |
| mind-blowing(awful, wonderful, amazing, grand, splendid) |
| mind-boggling |
| murder(adjective, hard, tough, severe, rough) |
| oppressive(adjective, difficult, heavy) |
| overpowering(adjective, difficult, powerful, overwhelming) |
| painful(adjective, hard, tough, severe, difficult) |
| portentous(adjective, fear) |
| puissant(adjective, tough, difficult, overwhelming, prevailing) |
| rigorous(adjective, hard, tough, severe, rough) |