| persevering(adjective, firm, determined, serious, resolute) |
| relentless(adjective, determined, fixed, resolute, stubborn) |
| steadfast(adjective, firm, determined, fixed, serious) |
| uncompromising(adjective, resolute) |
| unflinching(adjective, determined, fixed, serious, resolute) |
| adamant(adjective, determined, fixed, stubborn) |
| bold(adjective, resolute) |
| dedicated(adjective, resolute) |
| deliberate(adjective, resolute) |
| diligent(adjective, resolute) |
| earnest(adjective, firm, certain, serious, resolute) |
| inexorable(adjective, resolute) |
| inflexible(adjective, firm, determined, fixed, resolute) |
| mulish(adjective, firm, determined, fixed, resolute) |
| obdurate(adjective, determined, fixed, stubborn) |
| opinionated(determined, fixed, stubborn, hardheaded, dogmatic) |
| pertinacious(adjective, determined, fixed, stubborn) |
| pushy |
| recalcitrant(determined, fixed, stubborn, hardheaded) |
| refractory(adjective, determined, fixed, impulsive, stubborn) |