Meaning of yòu zhì:
yòu zhì
幼稚
Adjective
young; childish; puerile
Tā de pínglùn fēicháng yòuzhì.
他的评论非常幼稚。
His comment is very childish.
Tā de xíngwéi fēicháng yòuzhì.
他的行为非常幼稚。
His behavior is very childish.
Zhège wánxiào tài yòuzhì le.
这个玩笑太幼稚了。
This joke is too puerile.