| keen(adjective, strong, great, severe, sharp) |
| mordant(adjective, mean, hard, severe, sharp) |
| painful(adjective, hard, tough, severe, evil) |
| pungent(adjective, strong, great, sharp, unpleasant) |
| remorseless(adjective, mean, severe, violent, cruel) |
| scratchy(adjective, rough, asperous, sounds, grinding) |
| tart(adjective, strong, tough, severe, sharp) |
| unfriendly(adjective, mean, hard, severe, dark) |
| ungracious(adjective, characteristic, mean, hard, tough) |
| unmerciful(adjective, mean, hard, tough, severe) |
| unsparing(adjective, mean, strong, hard, tough) |
| agonizing(adjective, strong, hard, great, severe) |
| Draconian(adjective, tough, severe, firm, rigid) |
| Spartan(adjective, severe) |
| abrupt(adjective, severe, inelegance) |
| bad(adjective, mean, severe, terrible, ill) |
| brutish(adjective, evil, nasty, violent, cruel) |
| burdensome(adjective, difficult) |
| caterwauling(adjective, characteristic, hard, severe, sharp) |
| croaking(adjective, characteristic, hard, severe, sharp) |