uncertain

[ʌn'sə:tn]

adj.不确定的, 不稳定的, 易变的

a.

1. 不明确的; 含糊的; 不确定的

The date of his departure is uncertain.

他离开的日期尚未确定。

2. (人对……)不能确信, 不确知[Z][F][(+of/about)][+wh-]

I am still uncertain whether he will come today.

我仍不能肯定他今天是否会来。

3. 无常的, 易变的, 靠不住的

We didn't have the picnic because the weather was uncertain.

我们没有出去野餐, 因为天气变幻莫测。

4. 不稳定的, 变动的

词形变化

副词: uncertainly | 名词: uncertainness |

词义辨析

同义:

a.不定的; 不确定的

doubtful  unsure  speculative  changeable  unpredictable  insecure  precarious  

同义参见:

questionable  erratic  equivocal  conjectural  confused  undecided  dubious  ambiguous  dispossessed  risky  irresolute  adventurous  capricious  flighty  adrift  fickle  debatable  hazy  confused  contingent  bewildered  

反义:

a.不定的; 不安的

certain  

反义参见:

safe  evident  confident  sure  

英英释义

形容词 uncertain:

lacking or indicating lack of confidence or assurance

同义词：unsure, incertain

not established beyond doubt; still undecided or unknown

not established or confirmed

同义词：unsealed

not certain to occur; not inevitable

subject to change

同义词：changeable, unsettled

not consistent or dependable

ambiguous (especially in the negative)

短语词组

be uncertain of/about

1. 对……不能肯定

He was uncertain of the meaning of the sentence.

他对那句子的意思不能确定。

补充

uncertainuncertain英:[ʌnˈsə:tn] 美:[ʌnˈsɚtn]adj.1.不确定的; 不确信的They are uncertain about what to do next.他们不知道下一步该做什么。

例句

1. I'm still uncertain about how much we've got left.我仍然不确定我们还剩多少。 2. He was uncertain about his brother's intentions.他拿不准哥哥的意图是什么。 3. He stopped, uncertain how to put the question tactfully.他停下来, 不知道怎样才能巧妙地提出那个问题。 4. We were uncertain whether to leave.我们当时不确定是否该离开。 5. The future is uncertain.未来如何是个未知数。 6. They face an uncertain future.他们面对的是一个充满未知的未来。 7. How far the republics can give practical help, however, is uncertain.然而, 共和政体究竟能够提供多少切实可行的帮助还未可知。 8. It's uncertain whether they will accept the plan.还不确定他们是否会接受这一方案。 9. With some hesitation and an uncertain smile, she held out her hand.她犹豫了一下, 带着迟疑的微笑把手伸了出去。 10. She told him in no uncertain terms to go away.她毫不含糊地叫他滚开。 11. an uncertain future.前途未卜。 12. I was uncertain how to proceed.我没把握下一步该怎么做。 13. she has already refused me, in no uncertain terms.她已经毫不含糊地拒绝了我。 14. She was still uncertain of his true feelings for her.她仍然不能肯定他对自己的真实感受如何。 15. He's lost his job and his future seems very uncertain.他失业了，前途看来很不明朗。 16. Today's decision will put an end to all the uncertainty.今天的决定将把所有不明朗的因素来个了结。 17. an uncertain quantity无法确知的量 18. The time of departure is still uncertain.起飞时间仍然不确定。 19. We are still uncertain of the truth.我们对真相尚不确定。 20. She remains uncertain about her plans.她对自己的计划仍拿不准。 21. I'm uncertain about how to respond.我不确定该怎样回答。 22. an uncertain claim含混的赔偿要求 23. The cause of the fire is uncertain.起火原因现在还不确知。 24. uncertain weather变化莫测的天气 25. He has an uncertain temper.他的脾气难以捉摸。 26. They face a financially uncertain future.他们面临着经济状况捉摸不定的未来。 27. My mother told me in no uncertain terms to never say that word again!我母亲明确地告诉我永远别再说那句话！ 28. “Should I leave?” I asked uncertainly.“我该离开吗？”我迟疑地问道。 29. A drunk guy staggered uncertainly along the street.一个醉汉摇摇晃晃地走在大街上。