| adamantine(adjective, determined, resolute, uncompromising, unshakeable) |
| bullheaded(tough, firm, difficult, determined, awkward) |
| immovable(adjective, difficult, determined, resolute, stubborn) |
| mutinous |
| restive(determined, fixed, stubborn, capricious, willful) |
| set |
| strong |
| strong-willed |
| tenacious(adjective, tough, firm, difficult, wild) |
| unbending(tough, firm, difficult, determined, resolute) |
| uncompromising(adjective, tough, firm, difficult, determined) |
| uncooperative(adjective, tough, difficult, wild, awkward) |
| unrelenting(adjective, determined, resolute, uncompromising, unshakeable) |
| defiant |
| dogmatic(determined, fixed, stubborn, willful) |
| incorrigible |
| inexorable(adjective, tough, firm, determined, resolute) |
| lawless(adjective, rough, foolish, crazy, irrational) |
| pat(difficult, wild, determined, awkward, resolute) |
| persevering(adjective, tough, firm, unreasonable, grim) |