[医] ill health，ill-being，insalubrity，sickness ；

[例句] 他们生活在一种令人感到幽闭恐惧的不健康氛围里。 They lived in an unhealthily claustrophobic atmosphere.

[例句] 不要吃不健康食品，如汉堡和薯条。 Avoid unhealthy foods such as hamburger and chips.

fixedly，immobility，immovability ；

[例句] 牛排老得嚼不动，豌豆像子弹一样硬。 The steak was tough and the peas were like bullets.

[例句] 他站在那里一动也不动，呆呆地看着他残余的作品。 He stood very still, staring in at the ruins of his work.

[医] incompatibility，imparity，misbecome ；

[例句] 他伸出手来, 眼睛却不配合. He offered his hand; but his eyes did not go with it.

[例句] 如果不配合, 肯定还会反弹的. If not coordinate, definitely also will bounce.

impenitency ；

[例句] 那些拒不悔改的人，他说，将会受到惩罚。 Those who refuse to repent, he said, will be punished.

[例句] 嗜赌的人是死不悔改的乐天派。 Gamblers are incorrigible optimists.

defective，imperfect；

[例句] 这个人狂饮一通，努力让自己去接受自身的不完美。 This man drank rather heavily in an effort to come to terms with his own inadequacies.

[例句] 显然, 上司 ― ―秘书的比拟是不完美的. Clearly, the boss - secretary analogy is an imperfect one.

inadequacy，inadequate，disagree，inaptitude，indisposition ；

[例句] 好莱坞是个不适宜工作的地方。 Hollywood was an uncongenial place to work.

[例句] 她觉得自己不适宜结婚。 She felt herself unfitted for marriage.

get funny with，irreverence，profanity ；

[例句] 他否认曾口出对女性不敬的污言秽语。 He denies making off-color remarks about women.

[例句] 他相信他的记录会说明一切，并不理会那些对他不敬的人。 He believes that his records speak for themselves and ignores those who diss him.

implicity ；

[例句] 我丝毫都不怀疑我们对环境的污染是不可挽回的。 I have no doubt that we are polluting the environment beyond redemption.

[例句] 我不怀疑那个女孩的真诚. I don't doubt the girl's sincerity.

imprecision ；

[例句] 他的推理太不严密,没什么道理. His logic is too loose to make much sense.

[例句] 他是个思维不严密的人. He is a loose thinker.

be unbecoming to，impropriety，unseemliness ；

[例句] 原教旨主义团体严厉抨击那些他们认为穿着不得体的女性。 Fundamentalist groups have attacked women they regarded as improperly dressed.

[例句] 他有些话说得很不得体。 Some of his remarks were very off-key.

[医] impurity ；

[例句] 许多蕴藏量太小, 质地太不纯. Many of the deposits are too small, too impure.

[例句] 主张语文纯正的人哀叹语言趋于不纯. Purists bemoan the corruption of the language.

inaction ；

[例句] 她最近不活跃. She hasn't beenaround these days.

[例句] 报纸说,一年的这个时候商业不活跃. The papers say that business is slow at this time of year.

not applicable，inadequacy，inapplicability ；

[例句] 无迹象表明向客户售出了不适用的保险。 There is no suggestion that clients have been sold inappropriate policies.

[例句] 这条惯例对我们不适用。 The convention does not apply to us.

inappreciation ；

[例句] 但是有些人对赞美不仅不欣赏,反而感到厌恶. However, others areless affected by or even averse to praise.

[例句] 她不欣赏我的幽默. She didn't appreciate my humor.

insolubility，inapprehension，inscrutability，intangibility ；

[例句] 婴儿猝死的现象仍然不可解. The phenomenon of cot death has yet to be explained.

[例句] 那个谜对我们仍然是不可解的. The riddle remains inscrutable to us.

inaudibility ；

[例句] 上校微弱的声音几不可闻。 The Co-lonel's voice was barely audible.

[例句] 穿过米德尔斯伯勒的那条河变得污秽不堪、臭不可闻。 The river that runs through Middlesbrough became ugly on the eye and hard on the nose.

unable，incapable，indisposed ；

[例句] 我们的灵魂渴望着那力所不能的一饮. Our soul pants for the draught that is beyond its reach.

[例句] 勃起不是万能的, 但不能勃起却是万万都不能的! Erection is not a panacea, but not an erection is absolutely not!

incaution，imprudence ；

[例句] 若是上色的时候不小心弄坏了那些地图，他们可承担不起。 They could not afford to spoil those maps by careless colouring.

[例句] 他不小心撞到了桌子，把花打翻了。 He had blundered into the table, upsetting the flowers.

incertitude ；

[例句] 甚至在南段之内, 辉岩组中的矿层对比目前也不肯定. Even within the southern sector , correlation of seams in the pyroxenite series is at present uncertain.

[例句] 还不肯定, 但有可能. 我爸会在周六说明的. No , not really, but maybe. Dad will explain on Saturday.

incognizance，incognizant ；

[例句] 你不会真的觉得我会相信你不认识他吧。 You can't really expect me to believe you didn't know him.

[例句] “我不认识他，是吧？”——“对，你不认识他。” "I don't know him, do I?" — "No, you don't."