youthfulnessとは 意味・定義・例文
Noun 名詞
1. the fact of being young
若いこと, 若さ
Youthfulness is a matter of attitude to life, not of the year of birth.
2. the vitality characteristic of young people
若々しいこと, 若々しさ
She really keeps her youthfulness.
The company is filled with youthfulness and vitality.