na-adjective
Describes physical flexibility and resilience, such as a supple body, flexible material, or elastic movement.
彼女のしなやかな動きは見ていて気持ちがいい。
Her supple movements are pleasant to watch.
This material is very flexible and stretches well.
na-adjective
Extends the idea of suppleness to abstract qualities: graceful bearing, elegant style, or refined manner.
彼のしなやかな物腰は、多くの人に好印象を与える。
His graceful demeanor makes a good impression on many people.