| fixed(adjective, hard, firm, solid, stiff) |
| fossilize(verb, close, set, fix, firm) |
| fossilized(verb, adjective, syrupy, jellied, gel) |
| frozen(adjective, hard, firm, solid, stiff) |
| gel(verb, steady, hunch, jellied, tighten) |
| gelling(verb, hunch, jellied, gel, tighten) |
| graceless(adjective, hard, firm, solid, stiff) |
| gritty |
| hard(adjective, firm, solid, stiff, rigid) |
| harden(verb, steady, jellied, gel, calcify) |
| hardened(verb, adjective, hard, firm, solid) |
| hardly |
| immalleable(adjective, hard, firm, solid, stiff) |
| impliable(adjective, hard, firm, solid, stiff) |
| in buckram |
| incompliant(adjective, hard, firm, solid, stiff) |
| inelastic(adjective, hard, firm, solid, stiff) |
| jelled(adjective, hard, firm, solid, stiff) |
| jellied(verb, adjective, stiff, thick, hunch) |
| mechanical(adjective, hard, firm, solid, stiff) |