| unkind(adjective, animal, mean, hard, nasty) |
| unmerciful(adjective, mean, hard, tough, harsh) |
| unrelenting(adjective, animal, mean, hard, tough) |
| unsympathetic(adjective, animal, mean, hard, harsh) |
| wolf |
| hard(adjective, mean, tough, rough, harsh) |
| animal(noun, adjective, mean, strong, simple) |
| callous(adjective, mean, hard, rough, harsh) |
| coarse(adjective, simple, rough, rude, cruel) |
| devilish(adjective, animal, mean, evil, violent) |
| diabolical(adjective, animal, mean, evil, violent) |
| infuriated(strong, violent, brutal, angry, ferocious) |
| malevolent(adjective, mean, strong, severe, harsh) |
| mean(adjective, animal, hard, sharp, nasty) |
| native(adjective, violent, wild, vicious, fierce) |
| natural(adjective, simple, violent, wild, vicious) |
| rapacious(adjective, violent, cruel, vicious, fierce) |
| stony-hearted(adjective, cold, cruel, unfeeling, unsympathetic) |
| uncouth(adjective, rough, rude, cruel, coarse) |
| virulent |