| unrepentant(adjective, regret, remorseless, impenitence) |
| shameless(adjective, hard, tough, harsh, cruel) |
| remorseless(adjective, pitiless, merciless, regret, ruthless) |
| unremorseful |
| obdurate(adjective, hard, tough, careless, indifferent) |
| unapologetic |
| unregenerate(adjective, hard, tough, harsh, cruel) |
| callous(adjective, hard, tough, harsh, cruel) |
| hard(adjective, tough, harsh, careless, indifferent) |
| unashamed(adjective, hard, unfeeling, unsympathetic, hardened) |
| hardened(adjective, hard, tough, harsh, careless) |
| uncontrite(adjective, hard, tough, harsh, cruel) |
| unregenerated |
| insensitive(adjective, hard, tough, harsh, careless) |
| obstinate(adjective, remorseless) |
| cussed |
| unregretful |
| apathetic(adjective, hard, careless, indifferent, cruel) |
| avaricious(adjective, hard, tough, harsh, cruel) |
| barbarous(adjective, hard, tough, harsh, cruel) |