youthful
词形变化：
副词: youthfully | 名词: youthfulness |
同义词：
young | childish | juvenile | fresh | callow | boyish | adolescent | kiddish | puerile | maiden | virgin | green | childlike | girlish | young at heart | vigorous | energetic | lively | enthusiastic | active | sprightly | vernal |
反义词：
词义辨析：
同义:
a.年轻的; 初期的
young
fresh
juvenile
puerile
childish
kiddish
boyish
virgin
maiden
callow
green
同义参见:
adolescent
反义:
a.年轻的
aged
grown-up