| Rating | Solver | Clue |
|---|---|---|
| STIFFEN | Become rigid | |
| TENSE | Become rigid | |
| OSSIFY | Become rigid | |
| SET | To become fixed or rigid; to be fastened. | |
| FOSSILIZE | To become antiquated, rigid, or fixed, beyond the influence of change or progress. | |
| RELENT | To become less rigid or hard; to yield; to dissolve; to melt; to deliquesce. | |
| GIVE | To yield to force or pressure; to relax; to become less rigid; as, the earth gives under the feet. | |
| SLACKEN | To become slack; to be made less tense, firm, or rigid; to decrease in tension; as, a wet cord slackens in dry weather. | |