| accustomed(adjective, toughened, cynical, hard-boiled, hard-bitten) |
| benumbed(adjective, toughened, cynical, hard-boiled, hard-bitten) |
| callous(adjective, stubborn, hardened, toughened, cynical) |
| case-hardened(adjective, stubborn, hardened, toughened, cynical) |
| coldhearted(adjective, toughened, cynical, hard-boiled, hard-bitten) |
| contemptuous(adjective, toughened, cynical, hard-boiled, hard-bitten) |
| cynical(adjective, stubborn, hardened, toughened, hard-boiled) |
| disdainful(adjective, toughened, cynical, hard-boiled, hard-bitten) |
| habituated(adjective, toughened, cynical, hard-boiled, hard-bitten) |
| hard-as-nails(adjective, toughened, cynical, hard-boiled, hard-bitten) |
| hard-bitten(adjective, stubborn, hardened, toughened, cynical) |
| hard-boiled(adjective, hardened, toughened, cynical, hard-bitten) |
| hardened(adjective, stubborn, toughened, cynical, hard-boiled) |
| hardhearted(adjective, toughened, cynical, hard-boiled, hard-bitten) |
| heartless(adjective, toughened, cynical, hard-boiled, hard-bitten) |
| impenetrable(adjective, stubborn, hardened, toughened, cynical) |
| impious(adjective, toughened, cynical, hard-boiled, hard-bitten) |
| inaccessible(adjective, toughened, cynical, hard-boiled, hard-bitten) |
| indurated(adjective, stubborn, hardened, toughened, cynical) |
| inured(adjective, toughened, cynical, hard-boiled, hard-bitten) |