indeterminacy，incertitude，indetermination，uncertainty，unsureness；

[例句] 这一承诺能维持多久还不确定。 It is an open question how long that commitment can last.

[例句] 南希不确定德克是不是在勾引她。 Nancy wasn't sure if Dirk was making a pass at her.

irregular，out of order ；

[例句] 这把伞卷得不整齐. This umbrella doesn't furl neatly.

[例句] 除此之外,站上的一切全都一团糟 -- 人员混乱, 事物沓杂, 建筑也不整齐. Everything else in the station was in a muddle -- heads, things, buildings.

[数] uncorrelated，beside the mark，irrelevance，off the mark ；

[例句] 当局声称在两次不相关的袭击中已有6名平民丧生。 The authorities say six civilians have been killed in two separate attacks.

[例句] 这包括删除很大一部分不相关的内容。 This involved the deletion of a great deal of irrelevant material.

no longer，not any more，anymore，no more，not any longer ；

[例句] 她不再不停地指责他总不在家了。 She had stopped nagging him about never being home.

[例句] 精心搭配的室内装饰似乎已不再受欢迎了。 Interior decoration by careful coordination seems to have had its day.

the Kingdom of Bhutan，Bhutan；

[例句] 于是众等决定前往不丹, 再从不丹转往锡金. Then they decided to leave for Bhutan, then from Bhutan to Sikkim.

[例句] 我是少数能造访不丹的幸运儿之一. I am one of the lucky few who have been to Bhutan.

（不考虑； 不顾忌） disregard，ignore，in defiance of，in spite of，neglect ；

[例句] 他不顾医生的劝告自行出院了。 He discharged himself from hospital against the advice of doctors.

[例句] 内阁大臣们表明他们将不顾争议坚持下去。 Cabinet ministers signalled their determination to tough out the controversy.

unconformity，disagreement，discrepancy，discordance ；

[例句] “辛托6”的铀矿体产于不整合面之下变质甚深的粒玄岩中. At Scinto 6 uranium occurs in much altered dolerite below the unconformity.

[例句] 这种不整合面在石油勘探中具有很大实际意义. Such unconformities have considerably practical significance in oil exploration.

reluctant，unwilling，be disclined，reluctance ；

[例句] 在目前的形势下，船东们都不愿淘汰掉旧船。 In the present climate, owners are hanging on to old ships.

[例句] 发烧的孩子不愿吃东西，只会要冷饮。 A feverish child refuses to eat and asks only for cold drinks.

non-existent，nothingness，inexistence，nonentity ；

[例句] 后现代主义者声称不存在客观事实。人们凭什么要相信他们呢？ Postmodernists say there is no objective truth. Why should anyone believe them?

[例句] 这两项协议之间不存在正式的关联。 There is no formal linkage between the two agreements.

inadequate，deficient，[法] incomplete，insufficient，lacking ；

[例句] 他是个心有余而力不足的领导者。 He is a well-meaning but ineffectual leader.

[例句] 有关老年人生活所需不足的报告 a report on the unmet needs of elderly people

underdeveloped，underdevelopment ；

[例句] 人的脑垂体中间部是不发达的. In humans, the pars intermedia is a rudimentary region.

[例句] 这是一种不成熟, 或不发达首歌, 一首歌的婴儿. It's an immature, or underdeveloped song, a baby song.

not enough，insufficient，short of，lack，inadequate ；

[例句] 3亿美元远远不够。 Three hundred million dollars will be nothing like enough.

[例句] 许多十几岁的孩子既缺乏自信又不够懂事，所以感情上十分脆弱。 Lacking self-confidence and maturity, many teenagers are left feeling very vulnerable.

inattention，be unaware of，inadvertence，regardless，sit loose ；

[例句] 金发细腰的她太引人注目了，他们很难不注意到她。 Blonde and slender, she was too striking to escape their attention.

[例句] 如果你不注意的话，孩子们往往会不重视他们的家庭作业。 If you are not careful, children tend to neglect their homework.

be indifferent to，not concern oneself with，disinterest，insensibility，let slide ；

[例句] 在我看来，他不关心别人做什么。 It seems to me he's beyond caring about what anybody does.

[例句] 噢，我不关心政治，对政治一点也不感兴趣。 Oh I'm not political, I take no interest in politics.

disagree，disaccord，disagree with，disapprove of，dissent ；

[例句] 他们大有理由不同意我的一些选择。 They could quarrel quite legitimately with some of my choices.

[例句] “我不同意，”她说道，对自己的声音如此响亮有力而感到惊讶。 "I don'tagree," she said, surprised at the strength in her own voice.

unsuited，inadequacy，inconvenience，disagree with，inconformity ；

[例句] 我认为长期伏案的生活一点也不适合我。 I don't think a sedentary life would altogether suit me.

[例句] 天太冷，不适合到处去看房子。 It's too cold to schlepp around looking at property.

disregard，not take into account，irrespective of，except ；

[例句] 许多机动车事故都是不计后果地酒后开快车造成的。 Many motor accidents are the result of unthinkingly mixing speed and alcohol.

[例句] 公司称搬迁的费用可以忽略不计。 The company says the cost of relocation will be negligible.

unstable，unsteady，not firm，insecure ；

[例句] 这也许会火上浇油，破坏当前脆弱不稳的休战局面。 This may help to undermine the brittle truce that currently exists.

[例句] 他们站立不稳，协调性较差。 They were unsteady on their feet and rather uncoordinated.

unsettled，unstable，insecure，precarious，disequilibrium ；

[例句] 无国籍人的不安定状态 the limbo of the stateless person

[例句] 生活到处不安定,财产要用强硬手段获得. Everywhere life was insecure and property was held by the strong arm.

inexact ；

[例句] 他用词很不确切. He is quite inexact in his choice of words.

[例句] 那个词有很多不确切的含义. That word has many loose meanings.