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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無把握；猶豫；拿不準
    • They're both uncertain about what to do.他們兩人都拿不定主意該怎麽辦。
    • I'm still uncertain of my feelings for him.我仍不能肯定我對他的感情。
    opposite certain
    Express Yourself Expressing certainty or uncertaintyExpressing certainty or uncertainty表示確定或不確定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:陳述已經或將要發生之事時對自己所言表示確定或不確定：
      • I'm sure/100% certain/​absolutely positive I left my keys on the table.我肯定我把鑰匙落在桌子上了。
      • There's no doubt in my mind that this is the best option.我心裏確信無疑，這是最佳選擇。
      • Without a doubt,/No question, this is where it was.毫無疑問，它原來就在這裏。
      • I'm not (at all) sure what time they arrive, to be honest.老實說，我（一點也）拿不準他們什麽時候到。
      • I rather doubt they'll call back.我有點兒懷疑他們是否會回電話。
      (British English)
    Extra Examples
    • 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。
    • 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。
    • I feel deeply uncertain about the future.對於未來我深感信心不足。
    • 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。
    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多變的；難預料的
    • Our future looks uncertain.我們似乎前途渺茫。
    • a man of uncertain temper脾氣令人捉摸不透的男人
    Extra Examples
    • Cost estimates are notoriously uncertain in this business.衆所周知，這一行業的成本估算很不明確。
    • The world is inherently uncertain.世界在本質上是變幻莫測的。
    Oxford Collocations Dictionaryverbs
    • be
    • look
    • become
    • …
    adverb
    • extremely
    • fairly
    • very
    • …
    See full entry
  3. not definite or decided不確定的；未決定的 synonym unclear
    • It is uncertain what his role in the company will be.他在公司擔當什麽職務尚未決定。
    Extra Examples
    • 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。
    • immigration policies that made employment status uncertain造成就業狀況不確定的移民政策
    Oxford Collocations Dictionaryverbs
    • be
    • look
    • become
    • …
    adverb
    • extremely
    • fairly
    • very
    • …
    See full entry
  4. not confident信心不足的；遲疑的 synonym hesitant
    • The baby took its first uncertain steps.寶寶邁出了最初的蹒跚腳步。
    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明確有力地；毫不含糊地
    • I told him what I thought of him in no uncertain terms.我直言不諱地說出了我對他的看法。
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 另見variable條uncertain ♦︎ volatile ♦︎ unstable ♦︎ fickle ♦︎ unsettledThese words all describe situations that are likely to change, especially in a negative or unpleasant way. 這些詞均表示局勢多變的、難預料的、動蕩的。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 多變的，難預料的（尤指被視爲負面的）◆Our future looks uncertain.我們前途未蔔。◆He was a man of uncertain temper.他是個脾氣讓人捉摸不透的男人。OPP certain ⇨ certain ■ volatile ˈvɒlətaɪl; NAmE ˈvɑːlətl (disapproving, especially business 尤用於商業 or politics 政治) (of a situation) likely to change suddenly; easily becoming dangerous （局勢）可能驟變的，不穩定的；容易變得危險的◆This is a highly volatile situation from which riots might develop.現在局勢極不穩定，有可能發展成動亂。◆Exporting the product was difficult due to a volatile exchange rate.該産品的出口由於匯率波動劇烈而變得困難。ⓘ 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，亦常與character、nature和situation搭配。■ unstable (disapproving, especially business 尤用於商業 or politics 政治) likely to change suddenly, often causing serious problems 可能驟變的，不穩定的（常引發嚴重問題）◆The political situation remains highly unstable.政局仍然十分動蕩。OPP stable ⇨ steady ■ fickle (disapproving, especially journalism 尤用於新聞) changing often and suddenly 易變的；無常的◆Such is life in the fickle world of fashion.這就是變幻莫測的時裝界的生活。◆The latest downturn in sales shows just what a fickle business this is.最近銷售量的下降表明這個行業是多麽不穩定。■ unsettled (rather formal) (of a situation) changing often; making people uncertain about what might happen next （形勢）多變的，不安定的；不平穩的；動蕩不安的◆These were difficult and unsettled times.這是艱難而動蕩的時期。◆The weather has been very unsettled lately (= it has changed a lot).最近天氣十分多變。
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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