| cruel(adjective, characteristic, mean, strong, hard) |
| severe(adjective, characteristic, mean, strong, hard) |
| rough(adjective, characteristic, quiet, strong, hard) |
| hard(adjective, characteristic, mean, strong, cool) |
| stern(adjective, characteristic, mean, hard, tough) |
| discordant(adjective, characteristic, severe, rough, offensive) |
| bitter(adjective, characteristic, strong, hard, tough) |
| tough(adjective, characteristic, mean, strong, hard) |
| austere(adjective, characteristic, mean, strong, hard) |
| ruthless(adjective, characteristic, mean, hard, tough) |
| pitiless(adjective, characteristic, mean, hard, tough) |
| brutal(adjective, characteristic, mean, hard, tough) |
| grating(adjective, characteristic, severe, rough, pain) |
| rigid(adjective, characteristic, mean, strong, hard) |
| sharp(adjective, characteristic, strong, hard, tough) |
| strict(adjective, characteristic, strong, hard, tough) |
| stringent(adjective, characteristic, hard, tough, severe) |
| strident(adjective, characteristic, severe, rough, offensive) |
| unkind(adjective, characteristic, mean, hard, cool) |
| raucous(adjective, characteristic, severe, rough, offensive) |