uncoil

Instead, we see him shielding his face from the world, the release of tension visible as if a spring has uncoiled in his body.

Now it was contrary to all the most rigid laws of the porcupine kind to uncoil themselves in the face of danger.

As she spoke that weak thing within her seemed to uncoil, to grow suddenly tremendously strong; she longed to go!

I of course at once told him to uncoil it and get on the arte, from which he was not more than fifteen feet distant.