| graceless(adjective, hard, firm, solid, tense) |
| hard(adjective, firm, solid, stiff, rigid) |
| immalleable(adjective, hard, firm, solid, stiff) |
| impliable(adjective, hard, firm, solid, stiff) |
| incompliant(adjective, hard, firm, solid, tense) |
| indurate(adjective, hard, firm, solid, tense) |
| inelastic(adjective, hard, firm, solid, stiff) |
| inflexible(adjective, hard, firm, solid, stiff) |
| jelled(adjective, hard, firm, solid, tense) |
| mechanical(adjective, hard, firm, solid, tense) |
| numbed(adjective, hard, firm, solid, tense) |
| ossified(verb, adjective, hard, firm, solid) |
| petrified(verb, adjective, hard, firm, solid) |
| quenched |
| refractory(adjective, hard, firm, solid, tense) |
| resistant(adjective, hard, firm, solid, tense) |
| rheumatic(adjective, hard, firm, solid, tense) |
| rigid(adjective, hard, firm, solid, stiff) |
| set(verb, adjective, hard, firm, solid) |
| softened |