| thorough(adjective, resolute) |
| tireless(adjective, resolute, tenacious) |
| true(adjective, resolute, tenacious) |
| unbridled |
| unpliable(tough, difficult, awkward, obstinate, stubborn) |
| unshakeable(adjective, resolute) |
| unwavering(adjective, resolute) |
| venturous(adjective, careless, bold, thoughtless, brave) |
| volatile(adjective, passionate, unstable, unpredictable, unreliable) |
| willing(adjective, deliberate, determined, resolute, intentional) |
| zealous(adjective, passionate, violent, enthusiastic, resolute) |
| anti(negative, hostile, different, adverse, conflicting) |
| antipathetic(negative, hostile, different, adverse, conflicting) |
| antipodal(negative, hostile, different, adverse, conflicting) |
| antipodean(negative, hostile, different, adverse, conflicting) |
| antithetical(negative, hostile, different, adverse, conflicting) |
| arbitrary(foolish, stupid, senseless, irrational, capricious) |
| audacious(adjective, careless, anxious, bold, worried) |
| awkward(tough, difficult, obstinate, irrational, stubborn) |
| balking |