All 4 Uses of

limber
in
Misery, by Stephen King

Her hands had begun to spring limberly open and then snatch closed again, catching air and squashing it.†
Chpt 1 *

Tom had shown him how to hot-wire an ignition, how to use the thin and limber strip of metal car-thieves called Slim Jims to yank the lock on a car door, how to short out a car burglar alarm.†
Chpt 1

limber = make flexible

She suddenly leaped at him with that limber ferocity, and although he felt certain she meant to hurt him as she had before, possibly because she couldn't get at the dirty birdie of a scriptwriter who had cheated Rocket Man out of the Hudson before it went over the cliff, he did not move at all, he could see the seeds of her current instability in the window of past she had just opened for him, but he was also awed by it, the injustice she felt was, in spite of its childishness, completely, inarguably real.†
Chpt 2

He put the towel aside, flexed the hand for awhile (the first few times made him grimace with pain, but then the hand began to limber up), and started to write again.†
Chpt 3

Definition:

of a person's body: flexible (capable of moving, bending, and stretching easily)

or:

readily adaptable -- especially of someone's mind