| humdrum(adjective, characteristic, harshness, roughness) |
| humming(adjective, characteristic, harshness, roughness) |
| hustling(adjective, characteristic, harshness, roughness) |
| insipid(adjective, characteristic, harshness, roughness) |
| interminable(adjective, characteristic, harshness, roughness) |
| irksome(adjective, characteristic, harshness, roughness) |
| labored(adjective, characteristic, harshness, roughness) |
| lifeless(adjective, characteristic, harshness, roughness) |
| lively(adjective, characteristic, harshness, roughness) |
| monotonous(adjective, characteristic, harshness, roughness) |
| moth-eaten(adjective, characteristic, harshness, roughness) |
| mundane(adjective, characteristic, harshness, roughness) |
| murder(adjective, characteristic, harshness, roughness) |
| nothing(adjective, characteristic, harshness, roughness) |
| nowhere(adjective, characteristic, harshness, roughness) |
| onerous(adjective, characteristic, harshness, roughness) |
| painful(adjective, characteristic, harshness, roughness) |
| platitudinous(adjective, characteristic, harshness, roughness) |
| plebeian(adjective, characteristic, harshness, roughness) |
| popping(adjective, characteristic, harshness, roughness) |