音标：[,ʌn'ʃuә]
a. 不肯定的, 不确定的, 没有自信的
在线英汉词典

unsure的短语、例句：

unsure adj[pred 作表语] 1 ~ (of oneself) having little self-confidence 缺乏自信心
He´s rather unsure of himself. 他对自己没有什麽信心. 2 ~ (about/of sth) not having certain knowledge (about sth) （对某事）不确知, 无把握
I´m unsure of the facts. 我不能肯定事实是否如此.
We were unsure (about) who was to blame. 我们说不清该责怪谁.