na-adjective
Describes something that bends easily without breaking, often with a graceful or elegant connotation. Used for physical objects like branches, as well as metaphorically for a yielding attitude.
柳の枝はたわやかで、風に揺れている。
The willow branches are supple and sway in the wind.
彼女のたわやかな物腰が印象的だった。
Her graceful, yielding manner was impressive.