She moved so lightly it was as if she were dancing.
身のこなしが軽い人はスポーツが得意なことが多い。
People with light, agile body movements are often good at sports.
The martial artist moves fluidly, without any wasted effort.
In dance class I learned how to carry myself gracefully.
こなし is a noun meaning the graceful way one carries or moves one's body, while こなす is a verb meaning to handle, process, or master something skillfully.
carriage; demeanor; body movements
Usually written in kana; the kanji form 熟し is less common.
Kanji form; less common than kana.
Derived from the verb 熟す (こなす), meaning 'to digest' or 'to handle skillfully', nominalized to refer to the manner of handling one's body.