| confirmed(adjective, certain, determined, usual, regular) |
| courageous(adjective, resolute) |
| diligent(adjective, resolute) |
| headstrong(adjective, deliberate, determined, fixed, resolute) |
| immutable |
| intended(verb, adjective, deliberate, determined, careful) |
| intractable(adjective, determined, fixed, persistent, obstinate) |
| intransigent(adjective, deliberate, determined, fixed, resolute) |
| pertinacious(adjective, deliberate, determined, fixed, resolute) |
| planned(verb, adjective, certain, deliberate, determined) |
| refractory(adjective, determined, fixed, persistent, obstinate) |
| set on(expression, adjective, determined, serious, resolute) |
| severe(adjective, persistent, rigid, obstinate, stern) |
| steely(adjective, determined, resolute, uncompromising, unshakeable) |
| stern(adjective, resolute, persistent, rigid, obstinate) |
| strict(adjective, definite, persistent, rigid, obstinate) |
| true(adjective, strong, firm, certain, definite) |
| unchanging |
| undeviating(adjective, strong, flat, certain, determined) |
| unshakable |