| onerous(adjective, hard, tough, rough, difficult) |
| ruthless(adjective, appearance, mean, hard, tough) |
| unpleasant(adjective, hard, tough, difficult, harsh) |
| unsympathetic(adjective, person, mean, hard, tough) |
| inexorable(adjective, appearance, mean, strong, hard) |
| merciless(adjective, appearance, mean, hard, tough) |
| strong(adjective, hard, tough, intense, violent) |
| drastic(adjective, hard, tough, rough, difficult) |
| dreadful(adjective, wicked, painful, sickness, ache) |
| forbidding(adjective, appearance, strong, hard, tough) |
| hurtful(adjective, painful, sickness, ache, anguishes) |
| inclement(adjective, hard, cool, tough, keen) |
| raw(adjective, hard, cool, keen, sharp) |
| unadorned(adjective, characteristic, hard, simple, harsh) |
| unsparing(adjective, person, mean, strong, hard) |
| plain(adjective, characteristic, calm, clear, simple) |
| bleak(adjective, appearance, hard, cool, tough) |
| firm(noun, adjective, clear, strong, hard) |
| powerful(adjective, strong, sharp, harsh, intense) |
| savage(adjective, mean, hard, rough, harsh) |