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.

unsparingly, unspeakable, unspeakably, unspoiled, unspoken, unspotted, unstable, unsteadily, unsteadiness, unsteady, unstinting, unstintingly, unstop, unstoppable, unstuck, unstudied, unsubstantiated, unsuccessful, unsuitable, unsung, unsuspecting, unswerving, unsympathetic, untainted, untalented, untangle, untapped, untenable, unthinkable, unthinking, unthinkingly, unthreatening, untidily, untidiness, untidy, untie, until, until (also till), untimeliness, untimely,