weak-minded

weak-mind.ed

adj.（形容词）
Having or exhibiting a lack of judgment or conviction.
优柔寡断的：具有或表现出缺乏判断力或确信的
Foolish; silly.
愚蠢的；傻的
Offensive Of less than normal intellect.
【无礼用语】 低能的：低于正常智力的

【引伸】
weak.-mind.edness
n.（名词）