| discretional(adjective, free, deliberate, natural, witting) |
| discretionary |
| hard(adjective, sharp, determined, resolute, stubborn) |
| persistent(adjective, tough, firm, determined, unreasonable) |
| rebellious(adjective, tough, firm, unreasonable, grim) |
| recalcitrant(adjective, tough, firm, difficult, stupid) |
| set |
| unbending(adjective, tough, firm, determined, resolute) |
| unmanageable(tough, firm, difficult, awkward, unreasonable) |
| willed(adjective, free, deliberate, determined, natural) |
| advised(adjective, deliberate, careful, thoughtful, cautious) |
| aforethought(adjective, deliberate, careful, thoughtful, cautious) |
| contemplated(adjective, deliberate, determined, witting, voluntary) |
| contrary(adjective, tough, difficult, wild, determined) |
| fanatical(adjective, fervent, rash, zealous, volatile) |
| fractious(adjective, deliberate, determined, obstinate, stubborn) |
| hard-nosed(adjective, determined, resolute, impulsive, stubborn) |
| hardened(adjective, determined, fixed, resolute, stubborn) |
| immovable(adjective, difficult, determined, resolute, stubborn) |
| incompliant(adjective, tough, firm, difficult, awkward) |