adj.(形容词)

1. 不确定的，不定的
2. 易变的，无常的，多变的，不稳定的，变动的
3. 含糊的，不明确的
4. 靠不住的，不可靠的
5. 不定的，未决定的
6. 无把握的，信心不足的
7. 犹豫的，迟疑的
8. 难预料的

Adjective:

1. lacking or indicating lack of confidence or assurance;

   "uncertain of his convictions"
   "unsure of himself and his future"
   "moving with uncertain (or unsure) steps"
   "an uncertain smile"
   "touched the ornaments with uncertain fingers"
   

2. not established beyond doubt; still undecided or unknown;

   "an uncertain future"
   "a manuscript of uncertain origin"
   "plans are still uncertain"
   "changes of great if uncertain consequences"
   "without further evidence his story must remain uncertain"
   

3. not established or confirmed;

   "his doom is as yet unsealed"
   

4. not certain to occur; not inevitable;

   "everything is uncertain about the army"
   "the issue is uncertain"
   

5. subject to change;

   "a changeable climate"
   "the weather is uncertain"
   "unsettled weather with rain and hail and sunshine coming one right after the other"
   

6. not consistent or dependable;

   "an uncertain recollection of events"
   "a gun with a rather uncertain trigger"
   

7. ambiguous (especially in the negative);

   "she spoke in no uncertain terms"
   

1.不确定的；迟疑的；无把握的
If you areuncertain about something, you do not know what you should do, what is going to happen, or what the truth is about something.

e.g. He wasuncertain about his brother's intentions...
他拿不准他哥哥的意图是什么。
e.g. They wereuncertain of the total value of the transaction...
他们还不确定这笔交易的总价值是多少。

uncertainly
He entered the hallway and stood uncertainly.
他走进门厅，犹疑地停了下来。

2.未知的；不明了的；不确定的
If something isuncertain, it is not known or definite.

e.g. How far the republics can give practical help, however, isuncertain...
然而，这些共和国究竟能够提供多少切实可行的帮助还未可知。
e.g. It'suncertain whether they will accept the plan...
还不确定他们是否会接受这一方案。

3.明确地；毫不含糊地
If you say that someone tells a person somethingin no uncertain terms, you are emphasizing that they say it strongly and clearly so that there is no doubt about what they mean.

e.g. She told him in nouncertain terms to go away.
她明白无误地叫他离她远远的。

1. 不确定性：概率可以帮助我们理解风险(Risky)和不确定性(uncertain). 风险与不确定性是互有联系的两个概念. 不确定性是指决策者不能肯定某种经济行为一定会发生某种结果,也不知道其发生的概率. 风险是指决策者虽然不能肯定某种经济行为一定会发生某种结果,

2.

2. 想飞：Suggest >暗示 |uncertain >想飞 | Wave >挥手

Life on earth is short and uncertain.

地面上的生命是短暂而不确定的。

I'm uncertain whether to go or not.

我不能肯定去还是不去。

It seems uncertain why he lost the election.

他落选的原因似乎并不清楚。

I told him what I thought of him in no uncertain terms!

我毫不含糊地把我对他的看法告诉了他。

This is a very uncertain time for the global economy.

当前全球经济正面临一个极不稳定的时期。

The uncertain weather delayed our departure.

天气变换莫测，延误了我们启程。

They're both uncertain about what to do.

他们两人都拿不定主意该怎么办。

I'm still uncertain of my feelings for him.

我仍不能肯定我对他的感情。

Our future looks uncertain.

我们似乎前途渺茫。

a man of uncertain temper

脾气令人捉摸不透的男人

It is uncertain what his role in the company will be.

他在公司担当什么职务尚未决定。

The baby took its first uncertain steps.

宝宝迈出了最初的蹒跚的脚步。

I told him what I thought of him in no uncertain terms.

我直言不讳地说出了我对他的看法。

He was uncertain about his brother's intentions...

他拿不准他哥哥的意图是什么。

They were uncertain of the total value of the transaction...

他们还不确定这笔交易的总价值是多少。

How far the republics can give practical help, however, is uncertain...

然而，这些共和国究竟能够提供多少切实可行的帮助还未可知。

It's uncertain whether they will accept the plan...

还不确定他们是否会接受这一方案。

She told him in no uncertain terms to go away.

她明白无误地叫他离她远远的。

Therefore, the Hongqiao Airport to the form of assets into listed companies, is still uncertain.

因此, 虹桥机场资产以何种形式注入上市公司, 仍没有确定.

Englishmen themselves, let alone foreigners, are often uncertain what is slang and what isn't.

英国人自己也常常不能确定什么是俚语, 更不要说外国人了.

Though the future was uncertain, he made a commitment to writing and sold his jazz bar.

虽然未来是不确定的, 他投身写作,卖掉了爵士乐酒巴.

I own to being uncertain about that.

我坦白承认对那件事还没有把握.

Whether he will come is uncertain.

他来不来还不一定.

They are uncertain about what to do next.

他们不知道下一步该做什么.

The date of his departure is uncertain.

他离开的日期尚未确定.

The chances of success are uncertain.

成不成没准儿.

The date of the ship's arrival is uncertain.

船到的日期未定.

The outcome of the matter is still uncertain.

此事还未见分晓.

The future is so uncertain that one man's guess is as good as another's.

未来的事情很难臆测,大家都心中无数.

The prognosis for the economy is uncertain.

对经济的前景预测还不确定.

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.

They maintained an uncertain attitude.

他们持一种暧昧的态度.

His whereabouts is uncertain.

他目前下落不明.

It's still uncertain whether the College Spring Sports will be held this year.

学院今年的春运会是否开还是个未知数.

They're both uncertain about what to do.

他们两人都拿不定主意该怎么办。

• uncertain%20terms">in no uncertain terms用十分明确的言词...
• uncertain%20of">uncertain of对 ... 不确知...
• uncertain%20about">uncertain about对 ... 不确知的...
• uncertain%20about">be uncertain about对 ... 不确定...
• uncertain%20of">be uncertain of不能确定
• uncertain%20knowledge">uncertain knowledge不确定知识
• uncertain%20relation">uncertain relation不定关系
• uncertain">market uncertain市场涨落不定...
• uncertain%20system">uncertain system不确定系统
• uncertain%20inference">uncertain inference不确定性推理...
• uncertain%20prognosis">uncertain prognosis预后难定
• uncertain%20rate">uncertain rate不确定汇率
• uncertain%20reasoning">uncertain reasoning不确定推理
• uncertain%20region">uncertain region不可辨区, 不确定区...

• A duty of very uncertain extent.

  出自：S. Johnson

• There is nothing so uncertain as..human destiny.

  出自：J. McCosh

• He was a man of uncertain temper and one could not..guess how he would react.

  出自：R. K. Narayan

questionable，doubtful，ambiguous，uncertain

这些形容词均含“怀疑的，不确定的”之意。

questionable通常指怀疑某行为是否恰当，或指有根有据的怀疑。

doubtful指对某个问题持积极怀疑的，有疑问的态度，强调缺乏确信。

ambiguous指因缺乏明确感或因为有各种不同的解释而值得怀疑。

uncertain多指因缺乏证据或了解而捉摸不定，也指因不能预料而不能作出选择。