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BNC: 3532 COCA: 4291

uncertain

adjective
/ʌnˈsɜːtn/
/ʌnˈsɜːrtn/
 Idioms
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  1. [not before noun] uncertain (about/of something) feeling doubt about something; not sure无把握；犹豫；拿不准
    • 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。
    opposite certain
    Express Yourself Expressing certainty or uncertaintyExpressing certainty or uncertainty表示确定或不确定When you are stating what has happened or is going to happen, you can say how certain or uncertain you are about what you are saying:陈述已经或将要发生之事时对自己所言表示确定或不确定：
      • I'm sure/100% certain/​absolutely positive I left my keys on the table.我肯定我把钥匙落在桌子上了。
      • There's no doubt in my mind that this is the best option.我心里确信无疑，这是最佳选择。
      • Without a doubt,/No question, this is where it was.毫无疑问，它原来就在这里。
      • I'm not (at all) sure what time they arrive, to be honest.老实说，我（一点也）拿不准他们什么时候到。
      • I rather doubt they'll call back.我有点儿怀疑他们是否会回电话。
      (British English)
    Extra Examples
    • He seemed strangely uncertain as to how to continue.很奇怪，他好像不知道该如何继续下去。
    • His research into the incident has left him uncertain as to exactly where responsibility lay.对该事件作了调查研究后，他无法确定究竟是谁的责任。
    • I feel deeply uncertain about the future.对于未来我深感信心不足。
    • We were rather uncertain of the direction it came from.我们都不太确定它是从哪个方向过来的。
    Topics Doubt, guessing and certaintyb1
    Oxford Collocations Dictionaryverbs
    • be
    • feel
    • look
    • …
    adverb
    • deeply
    • very
    • rather
    • …
    preposition
    • about
    • as to
    • of
    • …
    See full entry
  2. likely to change, especially in a negative or unpleasant way多变的；难预料的
    • 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
    Extra Examples
    • Cost estimates are notoriously uncertain in this business.众所周知，这一行业的成本估算很不明确。
    • The world is inherently uncertain.世界在本质上是变幻莫测的。
    Oxford Collocations Dictionaryverbs
    • be
    • look
    • become
    • …
    adverb
    • extremely
    • fairly
    • very
    • …
    See full entry
  3. not definite or decided不确定的；未决定的 synonym unclear
    • 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。
    Extra Examples
    • Whether diet is an important factor in this illness is still uncertain.饮食是否是这种病的重要致病因素仍然无法确定。
    • immigration policies that made employment status uncertain造成就业状况不确定的移民政策
    Oxford Collocations Dictionaryverbs
    • be
    • look
    • become
    • …
    adverb
    • extremely
    • fairly
    • very
    • …
    See full entry
  4. not confident信心不足的；迟疑的 synonym hesitant
    • The baby took its first uncertain steps.宝宝迈出了最初的蹒跚脚步。
    Oxford Collocations Dictionaryverbs
    • be
    • feel
    • look
    • …
    adverb
    • deeply
    • very
    • rather
    • …
    preposition
    • about
    • as to
    • of
    • …
    See full entry
Idioms
in no uncertain terms
  1. clearly and strongly明确有力地；毫不含糊地
    • 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。
BNC: 3532 COCA: 4291
uncertain

adjective¹

 1not confident沒有信心VERBS | ADVERB | PREPOSITION VERBS➤be, feel, look, seem, sound沒有把握；感覺沒有把握；看上去缺乏信心；顯得缺乏信心；聽上去沒把握▸➤become變得不肯定➤leave sb使某人沒了信心◇His research into the incident has left him uncertain as to exactly where responsibility lay.對該事件作了調查研究後，他無法確定究竟是誰的責任。➤make sb令某人沒有把握ADVERB➤deeply, very非常缺乏信心◇I feel deeply uncertain about the future.對於未來我深感信心不足。➤rather, somewhat相當沒把握；有些拿不準▸➤a little, slightly, etc.有點兒／略有些吃不準PREPOSITION➤about, as to對⋯缺乏信心； 對⋯沒把握◇He seemed strangely uncertain as to how to continue.很奇怪，他好像不知道該如何繼續下去。➤of對⋯不確定◇We were rather uncertain of the direction it came from.我們都不太確定它是從哪個方向過來的。
uncertain

adjective²

 2not known exactly不確知VERBS | ADVERB VERBS➤be, look不確切知道；看上去不確定▸➤become變得不確定▸➤remain, seem依舊未確知；看上去不確定➤make sth使⋯不確定◇immigration policies that made employment status uncertain造成就業狀況不確定的移民政策ADVERB➤extremely, fairly, very, etc.極其／相當／非常不確定▸➤highly非常不確定◇Cost estimates are highly uncertain in this business.這一行業成本估算有很大的不確定性。➤increasingly越來越不確定▸➤still還是不確定◇Whether diet is an important factor in this illness is still uncertain.飲食是否是這種病的重要致病因素仍然無法確定。➤inherently本質上不確定◇The world is inherently uncertain.世界在本質上是變幻莫測的。
BNC: 3532 COCA: 4291
uncertain adj.
⇨ uncertain (an uncertain future) ⇨ hesitant (uncertain steps) ⇨ unclear (It is uncertain what…) ⇨ unsure (uncertain about sth) uncertain

adjective

  ➡ See also the entry for variable 另见variable条uncertain ♦︎ volatile ♦︎ unstable ♦︎ fickle ♦︎ unsettledThese words all describe situations that are likely to change, especially in a negative or unpleasant way. 这些词均表示局势多变的、难预料的、动荡的。PATTERNS AND COLLOCATIONS 句型和搭配◆the uncertain / volatile / fickle nature of sth◆an uncertain / a volatile / an unstable situation◆an uncertain / unstable environment◆uncertain / fickle / unsettled weather◆an uncertain / a volatile temper / temperament◆very uncertain / volatile / unstable / fickle / unsettled◆rather / notoriously uncertain / volatile / unstable / fickle■ uncertain (rather formal, usually disapproving) likely to change, especially in a negative or unpleasant way 多变的，难预料的（尤指被视为负面的）◆Our future looks uncertain.我们前途未卜。◆He was a man of uncertain temper.他是个脾气让人捉摸不透的男人。OPP certain ⇨ certain ■ volatile ˈvɒlətaɪl; NAmE ˈvɑːlətl (disapproving, especially business 尤用于商业 or politics 政治) (of a situation) likely to change suddenly; easily becoming dangerous （局势）可能骤变的，不稳定的；容易变得危险的◆This is a highly volatile situation from which riots might develop.现在局势极不稳定，有可能发展成动乱。◆Exporting the product was difficult due to a volatile exchange rate.该产品的出口由于汇率波动剧烈而变得困难。ⓘ Volatile is typically used to talk about the exchange rate, the economy, a political situation and markets or market conditions. It also collocates strongly with character, nature and situation. * volatile通常用以描述the exchange rate、the economy、a political situation、market和market conditions，亦常与character、nature和situation搭配。■ unstable (disapproving, especially business 尤用于商业 or politics 政治) likely to change suddenly, often causing serious problems 可能骤变的，不稳定的（常引发严重问题）◆The political situation remains highly unstable.政局仍然十分动荡。OPP stable ⇨ steady ■ fickle (disapproving, especially journalism 尤用于新闻) changing often and suddenly 易变的；无常的◆Such is life in the fickle world of fashion.这就是变幻莫测的时装界的生活。◆The latest downturn in sales shows just what a fickle business this is.最近销售量的下降表明这个行业是多么不稳定。■ unsettled (rather formal) (of a situation) changing often; making people uncertain about what might happen next （形势）多变的，不安定的；不平稳的；动荡不安的◆These were difficult and unsettled times.这是艰难而动荡的时期。◆The weather has been very unsettled lately (= it has changed a lot).最近天气十分多变。
BNC: 3532 COCA: 4291
uncertain
Not known or difficult to know: secret, private, personal...
Able to be changed and lasting only a short time: variable, brief, short-term...
Uncertain about something: uncertain, unsure, doubtful...
Not confident or shy and easily embarrassed: shy, uncertain, retiring...

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