| firm(noun, adjective, mean, strong, hard) |
| stubborn(adjective, characteristic, quality, mean, strong) |
| resolute(adjective, determined, obstinate, uncompromising, unshakeable) |
| inflexible(adjective, mean, strong, hard, secure) |
| determined(adjective, strong, tough, resolute, obstinate) |
| immovable(adjective, mean, strong, hard, secure) |
| intransigent(adjective, determined, resolute, obstinate, uncompromising) |
| rigid(adjective, mean, hard, determined, unreasonable) |
| inexorable(adjective, mean, hard, tough, determined) |
| obdurate(adjective, determined, resolute, obstinate, stubborn) |
| uncompromising(adjective, mean, hard, secure, firm) |
| fixed(adjective, mean, strong, hard, complete) |
| stiff(adjective, determined, resolute, obstinate, uncompromising) |
| unyielding(adjective, mean, strong, hard, secure) |
| insistent(adjective, determined, resolute, obstinate, uncompromising) |
| unbending(adjective, mean, strong, hard, tough) |
| relentless(adjective, mean, strong, hard, tough) |
| set(adjective, strong, hard, secure, tough) |
| steadfast(adjective, firm, determined, resolute, obstinate) |
| unrelenting(adjective, mean, hard, tough, certain) |