| hardheaded(adjective, determined, resolute, obstinate, uncompromising) |
| hidebound(adjective, determined, resolute, obstinate, uncompromising) |
| inelastic(adjective, determined, resolute, obstinate, uncompromising) |
| intransigent(adjective, determined, resolute, obstinate, stubborn) |
| determined(adjective, resolute, obstinate, uncompromising, unshakeable) |
| immovable(adjective, determined, resolute, obstinate, stubborn) |
| intractable(adjective, difficult, obstinate, stubborn, willful) |
| pat(adjective, determined, resolute, obstinate, stubborn) |
| pigheaded(adjective, obstinate, stubborn, willful) |
| tough(adjective, determined, resolute, obstinate, stubborn) |
| unbending(adjective, determined, resolute, obstinate, stubborn) |
| unrelenting(adjective, determined, resolute, obstinate, uncompromising) |
| dogged |
| firm(adjective, determined, resolute, obstinate, uncompromising) |
| fixed(adjective, determined, resolute, obstinate, uncompromising) |
| goal-oriented |
| hanging(adjective, determined, resolute, obstinate, uncompromising) |
| inexorable(adjective, determined, resolute, obstinate, uncompromising) |
| insistent(adjective, determined, resolute, obstinate, uncompromising) |
| recalcitrant(adjective, obstinate, stubborn, willful) |