| stony(adjective, set, hard, harsh, coarse) |
| ticklish(adjective, difficult, delicate, uncertain, unstable) |
| unsmooth(adjective, roughness, bumpy, weathered) |
| unyielding(adjective, strong, hard, sound, tough) |
| adamantine(adjective, set, strong, hard, tough) |
| blunt(adjective, crude, uncouth, discourtesy) |
| cacophonous(adjective, hard, severe, sharp, rough) |
| dense(adjective, set, strong, hard, tough) |
| furrowed(adjective, bumpy, weathered) |
| grating(adjective, hard, severe, sharp, rough) |
| grim(adjective, strong, hard, tough, severe) |
| intemperate(adjective, hard, tough, severe, rough) |
| jaggy |
| mighty(adjective, strong, sound, fit, solid) |
| potent(adjective, strong, sound, tough, energetic) |
| raucous(adjective, hard, severe, sharp, flat) |
| red-blooded(adjective, strong, tough, intense, energetic) |
| rigid(adjective, strong, hard, tough, severe) |
| savage(adjective, unpleasant, violent, wild, vicious) |
| stiff(adjective, ugliness) |