| uncompromising(adjective, tough, firm, determined, resolute) |
| wilful(adjective, determined, resolute, uncompromising, unshakeable) |
| bulldogged(adjective, tenacious) |
| dogmatic(adjective, opinionated, dictatorial) |
| firm(adjective, strong, hard, tough, determined) |
| grim(adjective, strong, hard, tough, firm) |
| immovable(adjective, strong, hard, tough, difficult) |
| indefatigable(adjective, resolute, tenacious) |
| indomitable(adjective, strong, hard, tough, difficult) |
| insistent(adjective, resolute, tenacious) |
| intractable(adjective, tough, firm, indifferent, deliberate) |
| staunch(adjective, resolute, tenacious) |
| steadfast(adjective, tough, firm, determined, resolute) |
| strong-minded(adjective, determined, resolute, impulsive, stubborn) |
| balky(tough, firm, unreasonable, grim, inflexible) |
| contrary(adjective, tough, difficult, wild, determined) |
| courageous(adjective, resolute, tenacious) |
| dauntless(adjective, resolute, tenacious) |
| decisive(adjective, resolute, tenacious) |
| deliberate(adjective, determined, resolute, intentional) |