| distasteful(adjective, hard, severe, tender, pain) |
| gnawing(adjective, painful) |
| hateful(adjective, mean, bad, wrong, evil) |
| hostile(adjective, mean, bad, wrong, evil) |
| ill-natured(adjective, mean, malicious, malevolent, vindictive) |
| inimical(adjective, negative, antagonistic, contrary, harmful) |
| insalubrious(adjective, offensive, foul, disgusting, harmful) |
| merciless(adjective, mean, severe, harsh, unpleasant) |
| pestilential(adjective, bad, evil, harmful, injurious) |
| poignant(adjective, hard, unpleasant, vicious, painful) |
| rancorous(adjective, mean, negative, malicious, harmful) |
| scathing(hard, sharp, unkind, spiteful, cutting) |
| stiff |
| torturous |
| unbearable(adjective, painful) |
| acid(adjective, severe, sharp, nasty, behavior) |
| acrimonious(hard, severe, unkind, cutting, wounding) |
| annoying(adjective, sharp, nasty, tender, offensive) |
| atrocious |
| brutal(adjective, severe, harsh, unpleasant, cruel) |