| fossilized |
| hardened(verb, adjective, hard, firm, solid) |
| adamantine(adjective, determined, resolute, uncompromising, unshakeable) |
| intransigent(adjective, determined, resolute, uncompromising, unshakeable) |
| petrified(verb, adjective, hard, firm, solid) |
| stubborn(adjective, characteristic, quality, determined, resolute) |
| adamant(adjective, determined, resolute, uncompromising, unshakeable) |
| fossilised |
| hard(adjective, firm, solid, determined, resolute) |
| inactive(adjective, action, lazy, inert, motionless) |
| inflexible(adjective, firm, solid, determined, normal) |
| set(adjective, hard, firm, solid, heavy) |
| stiffened |
| unrelenting(adjective, determined, resolute, uncompromising, unshakeable) |
| bony(adjective, hardened, scrawny, skinny, petrified) |
| congealed(verb, adjective, set, hard, firm) |
| fixed(verb, adjective, set, firm, solid) |
| solidified(adjective, set, hard, firm, solid) |
| stiff(adjective, set, hard, firm, solid) |
| unbending(adjective, firm, solid, determined, resolute) |