| insensitive(adjective, hard, careless, indifferent, cruel) |
| intense(adjective, severe, harsh, cruel, resolute) |
| iron-willed(adjective, determined, resolute, uncompromising, unshakeable) |
| irreconcilable(adjective, hostile, conflicting) |
| muscle-bound |
| normal(adjective, straight, even, rigid, consistent) |
| oppressive(adjective, severe, severity) |
| peremptory(resolution, affected, severity, strained, unnatural) |
| rebellious(adjective, tough, firm, unreasonable, obstinate) |
| restricted(adjective, certain, limited, definite, intent) |
| right(smooth, moderate, solid, short, cautious) |
| savage(adjective, terrible behavior) |
| settled(adjective, strong, flat, firm, certain) |
| starched(adjective, hard, firm, solid, stiff) |
| stark(adjective, hard, severe, firm, solid) |
| strait-laced(adjective, severe, severity) |
| strong(adjective, set, hard, tough, flat) |
| strong-minded(adjective, firm, determined, resolution, fixed) |
| sure(adjective, strong, tough, flat, firm) |
| tense(adjective, hard, firm, solid, stiff) |