| unswerving(adjective, strong, tough, firm, determined) |
| contumacious(adjective, tough, firm, determined, unreasonable) |
| cussed(adjective, tough, firm, unreasonable, grim) |
| dictatorial(adjective, hateful, impatient, prejudiced, partisan) |
| indurate(adjective, determined, resolute, stubborn, uncompromising) |
| inelastic(adjective, determined, resolute, obstinate, uncompromising) |
| irreclaimable(vice, shameless) |
| positive(adjective, certain, definite, severity, prejudiced) |
| staunch(adjective, strong, tough, flat, firm) |
| unapologetic |
| unforgiving(adjective, person, mean, hard, rough) |
| wayward(adjective, tough, difficult, contrary, obstinate) |
| willful(adjective, tough, firm, determined, resolute) |
| authoritarian(adjective, strong, hard, tough, severe) |
| bovine(adjective, determined, resolute, obstinate, uncompromising) |
| brass-bound(adjective, determined, resolute, obstinate, uncompromising) |
| chilly(adjective, person, severe, feelings, emotions) |
| cool(adjective, mean, hard, severe, unpleasant) |
| exacting(adjective, hard, tough, severe, rough) |
| inhuman(adjective, mean, hard, tough, severe) |