| bloody-minded(adjective, persistent, obstinate, insistent, dogged) |
| chaotic(adjective, wild, foolish, crazy, unstable) |
| confirmed(adjective, hard, severe, rough, harsh) |
| cumbrous(adjective, inexpedience, cumbersome) |
| hard(determined, fixed, stubborn, disorderly, unruly) |
| hulky(adjective, bulky, inexpedience) |
| impossible(adjective, difficulty) |
| incompliant(adjective, tough, firm, difficult, wild) |
| inconvenient(adjective, troublesome, bothersome) |
| insuppressible(adjective, violent, wild, vivacious, unruly) |
| noisy(adjective, wild, foolish, crazy, unstable) |
| outrageous(adjective, terrible, wild, foolish, crazy) |
| ponderous |
| resistant |
| unbridled(adjective, rough, wild, foolish, crazy) |
| unconquerable(adjective, persistent, obstinate, insistent, dogged) |
| uncorrectable |
| unrestrainable(adjective, violent, wild, vivacious, unruly) |
| unyielding(adjective, tough, firm, unpleasant, determined) |
| adamant(adjective, tough, firm, unreasonable, grim) |