"Lithesome" is a word in ENGLISH

Easily bent; flexible; pliant; yielding.

To cause to become limber; to make flexible or pliant.

Capable of being easily bent; pliant; flexible; limber; as, the elephant's lithe proboscis.

Capable of being plied, turned, or bent; easy to be bent; flexible; pliant; supple; limber; yielding; as, willow is a …

Capable of plying or bending; readily yielding to force or pressure without breaking; flexible; pliable; lithe; limber; plastic; as, a …

Not easily bent; not flexible or pliant; not limber or flaccid; rigid; firm; as, stiff wood, paper, joints.