in a way that shows you are not confident about yourself or your relationships with other people 缺乏信心的；无把握的 insecurely attached children 没有安全感的孩子
in a way that is not safe or protected 不安全的；无保障的；不牢靠的 insecurely stored passwords 密码存储不安全 people who are insecurely housed 安置不安全的人
in a way that is likely to move, fall down, etc. The unit was insecurely mounted. 该单元安装不牢固。
opposite securely