babyish

/ˈbeɪbiɪʃ/ 10
Babyish actions, feelings, or looks are like a baby's, or are immature. 婴儿一般的; 小孩子气的

adjective [原级]幼稚的;愚蠢的;适于婴儿的

I'm ashamed of the babyish nonsense I write. 我为我写出幼稚的话感到丢脸。