| blind to(expression, adjective, hard, careless, indifferent) |
| bloody(adjective, hard, tough, harsh, cruel) |
| careless(adjective, hard, indifferent, cruel, apathetic) |
| case-hardened(adjective, hard, careless, indifferent, cruel) |
| clear |
| cold(adjective, hard, careless, indifferent, cruel) |
| cold-blooded(adjective, hard, careless, indifferent, cruel) |
| cruel(adjective, hard, tough, harsh, careless) |
| deaf to(expression, adjective, hard, careless, indifferent) |
| fierce(adjective, hard, tough, harsh, cruel) |
| forbidding(adjective, hard, tough, harsh, cruel) |
| graceless |
| grim(adjective, hard, tough, harsh, cruel) |
| hard-bitten(adjective, hard, tough, careless, indifferent) |
| hard-boiled(adjective, hard, careless, indifferent, cruel) |
| hard-hearted(adjective, hard, tough, harsh, cruel) |
| hardhearted(adjective, hard, careless, indifferent, cruel) |
| harsh(adjective, hard, tough, cruel, grim) |
| heartless(adjective, hard, careless, indifferent, cruel) |
| heathenish |