noun
stalwart youth; vigorous young man
A somewhat literary or formal term for a strong, healthy, and spirited young man. Often used in historical or elevated contexts.
彼はまさに現代の健児だ。
He is truly a stalwart youth of the modern age.
昔話には村を守る健児が登場する。
In old tales, a stalwart youth who protects the village appears.