| thick-skinned(adjective, hard, unfeeling, unsympathetic, hardened) |
| torpid(adjective, hard, unfeeling, unsympathetic, hardened) |
| tough(adjective, hard, unfeeling, unsympathetic, hardened) |
| tractable(adjective, gentle, mild, compliant, broken) |
| unaffected(adjective, hard, unfeeling, unsympathetic, hardened) |
| unafraid(adjective, gentle, mild, compliant, broken) |
| unconcerned(adjective, hard, unfeeling, unsympathetic, hardened) |
| unimpressionable(adjective, hard, unfeeling, unsympathetic, hardened) |
| unresisting(adjective, gentle, mild, compliant, broken) |
| unresponsive(adjective, hard, unfeeling, unsympathetic, hardened) |
| unsentimental(adjective, toughened, cynical, hard-boiled, hard-bitten) |
| unsusceptible(adjective, hard, unfeeling, unsympathetic, hardened) |
| unsympathetic(adjective, hard, unfeeling, hardened, toughened) |
| using(adjective, dependent, hooked, addicted) |
| utilised |
| utilized |
| veteran |
| wasted(adjective, dependent, hooked, addicted) |
| wedded |
| wedded to(verb, phrasal verb, impulse) |