| hesitant(averse, unwilling, reluctant) |
| impermeable(proof, unaffected, unyielding, unbending, impervious) |
| imperviable(unaffected, unyielding, unbending, unreceptive) |
| indocile(adjective, difficult, awkward, forced, averse) |
| insolent(adjective, defiant) |
| insurgent(adjective, defiant) |
| involuntary(adjective, difficult, awkward, forced, averse) |
| invulnerable(adjective, strong, safe, unaffected, unyielding) |
| leathery(adjective, strong, hard, solid, stiff) |
| loathly |
| objecting(adjective, slow, shy, averse, unwilling) |
| petrified(adjective, hard, firm, solid, tense) |
| quarrelsome(adjective, contentious) |
| revolutionary(unruly, secretive, disobedient, recalcitrant, experimental) |
| shedding |
| steely(adjective, hard, firm, solid, tense) |
| stony(adjective, hard, firm, solid, stiff) |
| toughened(adjective, strong, hard, unfeeling, unsympathetic) |
| unassailable(adjective, opposing, insusceptible) |
| uncompliant |