| self-willed |
| unshakeable(adjective, determined, resolute, uncompromising) |
| bulldogged(adjective, tenacious) |
| constant(adjective, strong, firm, serious, resolute) |
| courageous(adjective, strong, firm, energetic, determined) |
| dauntless(adjective, energetic, determined, noble, resolute) |
| deliberate(adjective, firm, intense, determined, resolute) |
| diligent(adjective, resolute, tenacious) |
| faithful(adjective, resolute, tenacious) |
| fixed(adjective, firm, determined, serious, resolute) |
| immovable(adjective, determined, resolute, uncompromising, unshakeable) |
| implacable(adjective, determined, resolute, uncompromising, unshakeable) |
| independent |
| insistent(adjective, resolute, tenacious) |
| intent(adjective, firm, intense, deliberate, determined) |
| pigheaded |
| plucky(adjective, energetic, determined, vigorous, noble) |
| refractory |
| spunky(adjective, strong, tough, firm, energetic) |
| stalwart(adjective, intense, deliberate, determined, vigorous) |