intimidate
All a b c d e f g h i j k l m n o p q r s t u v w x y z
All CEFR A1 A2 B1 B2 C1 C2
Content locale
EN 英语 BN 孟加拉语 HI 印地语 ES 西班牙语 FR 法语 DE 德语 RU 俄语 ZH 中文 JA 日语
All Vocabulary Cards All Vocabularies
C1 verb /ɪnˈtɪmɪdeɪt/

intimidate

Meaning
To frighten or overawe someone, especially to make them do what one wants.
Example
The bully tried to intimidate the smaller kids.
C1 adjective ˌɪn.trəˈspek.tɪv

introspective

内省的
Meaning
Characterized by or given to introspection; examining one's own thoughts and feelings.
Example
Writers tend to be highly introspective individuals.
作家通常是高度内省的人。
B2 adjective ɪˈmɜː.sɪv

immersive

沉浸式
Meaning
Providing, involving, or characterized by deep absorption or immersion in something.
Example
Virtual reality creates an immersive learning environment.
虚拟现实创造了一个沉浸式学习环境。
A2 noun /ˈɪntəvjuː/

interview

面试
Meaning
A meeting of people face to face, especially for consultation.
Example
The interview was conducted in a calm and professional manner.
面试以平静和专业的方式进行。
B2 adverb /ɪnˈɛvɪtəbli/

inevitably

不可避免地
Meaning
in a way that cannot be avoided or prevented
Example
Inevitably, the team faced challenges during the project.
不可避免地，团队在项目过程中遇到了挑战。
C1 noun /ɪnˈsɜːrdʒəns/

insurgence

叛乱
Meaning
An act of rebellion or uprising against authority.
Example
The government struggled to contain the growing insurgence.
政府难以控制日益增长的叛乱。
B2 adjective ˈɪn.tɪ.ɡrəl

integral

必要的
Meaning
Necessary to make a complete whole; essential or fundamental.
Example
Exercise is an integral part of a healthy lifestyle.
锻炼是健康生活方式的重要组成部分。
C1 adjective /ɪnˈhjuːmən/

Inhuman

不人道的
Meaning
lacking human qualities; cruel; brutal; savage
Example
The dictator's inhuman treatment of prisoners shocked the international community.
独裁者对囚犯的非人道待遇震惊了国际社会。
A2 adverb /ˌɪnˈdɔːrz/

indoors

在室内
Meaning
inside a building; within an enclosed space
Example
Because of the rain, everyone stayed indoors.
因为下雨，大家都待在室内。
B1 verb /ˈɪndɪkeɪt/

indicate

指示
Meaning
to point out; to show or suggest; to be a sign of
Example
The red light indicates that you should stop.
红灯表示你应该停下来。
B2 noun /ɪnˈspekʃən/

inspection

检查
Meaning
a careful examination of something, especially to check that it is correct or safe
Example
The building passed the safety inspection last week.
该建筑上周通过了安全检查。
C2 adjective /ɪnˈkɒntɪnənt/

incontinent

失禁
Meaning
lacking control over urination or defecation; lacking self-restraint
Example
The patient was incontinent after surgery.
病人在手术后失禁。
C2 adverb /ˌɪnəzˈmʌtʃ/

inasmuch

鉴于
Meaning
To the extent that; considering that.
Example
Inasmuch as you are their teacher, you should guide them carefully.
鉴于你是他们的老师，你应该小心地指导他们。
C2 noun /ˌɪmprəˈpraɪəti/

impropriety

不当行为
Meaning
Failure to observe standards of honesty or modesty; improper behavior.
Example
The politician was accused of financial impropriety.
该政治家被指控涉及财务不当行为。
C1 adjective /ɪˈmoʊbəl/

immobile

无法移动
Meaning
unable to move or be moved
Example
After the accident, he was immobile for weeks.
事故发生后，他几周都无法移动。
A1 noun /aɪˈdiː.ə/

Idea

主意; 概念; 提议
Meaning
a thought or suggestion as to a possible course of action; a concept or mental impression
Example
She had a brilliant idea for solving the company's efficiency problem.
她有一个解决公司效率问题的精彩主意。
C1 verb /ˈɪmplɪˌkeɪt/

implicate

牵涉
Meaning
To show someone’s involvement in a crime or wrongdoing.
Example
The evidence implicated several officials in the scandal.
证据揭示了几名官员在丑闻中的牵涉。
B2 noun ˈɪnəveɪtɪv tuːlz

innovative tools

创新工具
Meaning
Creative devices or advanced technologies that introduce new methods or approaches to accomplish tasks.
Example
Teachers use innovative tools to enhance classroom learning.
教师使用创新工具来提高课堂学习。
C1 noun /ˈɪnsɪdəns/

incidence

事件发生率
Meaning
the occurrence, rate, or frequency of something
Example
The incidence of road accidents has decreased this year.
今年道路事故的发生率有所下降。
C2 noun /ˈaɪdlər/

idler

懒汉
Meaning
A person who avoids work or spends time lazily.
Example
He was known as an idler who wasted his days.
他被称为一个懒汉，浪费了他的日子。
C2 verb /ɪnˈdaɪt/

indite

创作
Meaning
To write or compose (literary or formal works).
Example
The poet indited a heartfelt sonnet.
诗人创作了一首真挚的十四行诗。
A2 noun /ˌɪnvɪˈteɪʃən/

invitation

幸福
Meaning
a written or spoken request to attend an event or to participate in something
Example
She sent me an invitation to her wedding.
当她收到奖项时，她无法掩饰自己的幸福。
C1 adjective ˌɪn.təˈdɪs.ɪ.plɪ.nər.i

interdisciplinary

跨学科的
Meaning
Relating to more than one branch of knowledge.
Example
The interdisciplinary approach in education enhances problem-solving skills.
教育中的跨学科方法提高了解决问题的能力。
A2 verb /ˌɪntrəˈduːs/

introduce

介绍
Meaning
to present someone; to bring in for the first time
Example
Let me introduce you to my friend.
让我介绍你给我的朋友。
C2 noun /ɪnˈsɪɡniə/

insignia

徽章
Meaning
A badge or symbol that shows rank, position, or membership.
Example
The soldier proudly wore the insignia of his regiment.
士兵自豪地佩戴着他团的徽章。
B2 verb /ɪnˈtɜːrprət/

interpret

Meaning
to explain the meaning of something; to translate orally
Example
She had to interpret the speech for the foreign guests.
B2 verb /ɪnˈhæbɪt/

inhabit

栖息
Meaning
to live in; to occupy as a dwelling
Example
Many animals inhabit the forest.
许多动物栖息在森林中。
C1 adverb /ˌɪn.dɪˈskrɪm.ɪ.nət.li/

Indiscriminately

无差别地
Meaning
without making careful distinctions; randomly; without discrimination
Example
The company fired employees indiscriminately without considering their performance.
公司无差别地解雇了员工，没考虑他们的表现。
B2 adjective ˈɪn.tɪ.ɡreɪ.tɪd

integrated

集成
Meaning
Combining or coordinating separate elements so as to provide a harmonious, interrelated whole.
Example
Integrated systems optimize efficiency.
集成系统优化效率。
B2 verb /ɪˈnɪʃieɪt/

initiate

启动
Meaning
to begin or start; to introduce someone to a new activity
Example
The company will initiate a new training program.
公司将启动一个新的培训项目。
C1 adjective /ˌɪnkənˈsɪdərət/

inconsiderate

不体贴
Meaning
Thoughtless; showing a lack of concern for others.
Example
It was inconsiderate of him to play loud music late at night.
他在深夜播放大声音乐，显得很不体贴。
C1 noun ˌɪrɪˈvɜːrsəbl ˈdæmɪdʒ

irreversible damage

不可逆的损害
Meaning
Harm or injury that cannot be undone or repaired.
Example
Climate change causes irreversible damage to ecosystems.
气候变化对生态系统造成了不可逆的损害。
C2 noun /ˈɪnsələns/

insolence

厚颜无耻
Meaning
rude or disrespectful behavior
Example
The teacher was shocked by the student's insolence.
老师对学生的厚颜无耻感到震惊。
C1 adjective /ˌɪndɪˈskriːt/

indiscreet

不谨慎
Meaning
Not careful in what one says or does, likely to reveal secrets or offend.
Example
It was indiscreet of him to mention the plan in public.
他在公众场合提到计划是不谨慎的。
C1 adjective /ɪˈledʒ.ə.bəl/

illegible

难以辨认
Meaning
Not clear enough to be read; unreadable.
Example
The doctor’s handwriting was almost illegible.
医生的字迹几乎难以辨认。
C1 noun /ˈɪrɪtənt/

irritant

刺激物
Meaning
something that causes irritation or discomfort
Example
Dust is a common irritant for people with allergies.
灰尘是过敏者常见的刺激物。
A2 verb /ɪnˈkluːd/

include

包括
Meaning
to have as part of a whole; to contain or comprise
Example
The price includes all taxes.
价格包含所有税费。
B2 verb /ˈɪmɪteɪt/

imitate

模仿
Meaning
to copy the behavior or manner of someone or something
Example
Children often imitate their parents' behavior.
孩子们经常模仿父母的行为。
B2 noun /ˈaɪrəni/

irony

讽刺
Meaning
a situation that is strange or amusing because it is the opposite of what is expected; the use of words to convey the opposite meaning
Example
The irony of the situation was that the winner forgot his own prize.
这件事的讽刺在于，获胜者忘记了自己的奖品。
C2 adjective ɪnˈdɒm.ɪ.tə.bəl

indomitable

不可征服
Meaning
Impossible to subdue or defeat.
Example
Her indomitable spirit helped her overcome adversity.
她那不可征服的精神帮助她克服了逆境。
C2 noun /ˈɪrɪtənsi/

irritancy

恼怒
Meaning
the quality or state of causing irritation; legal or formal invalidation
Example
The constant noise became an irritancy to the neighbors.
持续的噪音成为邻居的恼怒源。
B2 verb /ˈɪr.ɪ.teɪt/

irritate

刺激
Meaning
To make someone annoyed or angry; to cause discomfort or inflammation.
Example
Rubbing your eyes can irritate them.
摩擦眼睛可能会刺激它们。
C2 verb /ˌɪntərˈlɒk/

interlock

互锁
Meaning
to fit or connect together securely so that two or more things are joined
Example
The gears interlock to ensure smooth movement of the machine.
齿轮相互啮合，确保机器的平稳运行。
C1 noun /ɪnˈdem.nə.ti/

Indemnity

赔偿
Meaning
security or protection against a loss or other financial burden; compensation for damage or loss
Example
The insurance company provided full indemnity for the damages caused by the flood.
保险公司为洪水造成的损失提供了完全的赔偿。
C1 noun ˌɪndɪˈspensəbl səˈpɔːrt

indispensable support

不可或缺的支持
Meaning
Essential assistance that cannot be done without; absolutely necessary help.
Example
Volunteers provide indispensable support to communities.
志愿者为社区提供不可或缺的支持。
C1 adjective /ɪnˈdiːsənt/

indecent

不雅的
Meaning
not conforming to accepted standards of behavior or morality; improper or offensive
Example
He was warned for making an indecent remark during the meeting.
他因为说了不雅的话而受到警告。
A2 noun /ˈɪnfoʊ/

info

信息
Meaning
information; knowledge or facts about something or someone
Example
She gave me all the info I needed for the meeting.
她给了我所有会议所需的信息。
B2 noun /ɪnˈvɛstɪˌɡeɪtər/

investigator

幸福
Meaning
a person who carries out a formal inquiry or investigation
Example
The investigator gathered evidence from the crime scene.
当她获得奖项时，她无法掩饰自己的幸福。
C1 adjective /aɪˈdɪlɪk/

idyllic

田园诗般的美丽
Meaning
Like an idyll; extremely happy, peaceful, or picturesque.
Example
They enjoyed an idyllic vacation by the sea.
他们享受了一个田园诗般的海边假期。
C2 adjective /ɪmˈpræktɪkəbl/

impracticable

不切实际
Meaning
Not capable of being carried out or put into practice.
Example
The plan seemed impracticable due to limited resources.
由于资源有限，计划显得不切实际。
C1 adjective /ɪnˈfɜːm/

infirm

虚弱
Meaning
Weak, especially due to old age or illness.
Example
The infirm old man needed assistance to walk.
那位虚弱的老人需要帮助才能走路。
C2 adjective /ɪnˈvaɪələt/

inviolate

神圣不可侵犯
Meaning
free from violation, injury, or desecration; kept safe and untouched
Example
The ancient temple remained inviolate for centuries.
古老的寺庙几百年来一直保持着神圣不可侵犯。
B2 adjective /ˈɪmpæktfʊl/

impactful

有影响力的
Meaning
Having a major impact or effect; powerful and forceful.
Example
Her impactful speech moved the audience to take action.
她有影响力的演讲促使观众采取行动。
C1 noun /ˌɪnkəmˌpætəˈbɪlɪti/

incompatibility

不兼容性
Meaning
the state of being unable to exist or work together harmoniously; lack of compatibility
Example
The project failed because of incompatibility between the two software systems.
由于两个软件系统之间的不兼容性，项目失败了。
B2 noun /ˌɪmɪˈɡreɪʃən/

immigration

移民
Meaning
the action of coming to live permanently in a foreign country
Example
Immigration policies vary from country to country.
移民政策因国家而异。
B1 adjective /ɪnkəˈrɛkt/

incorrect

不正确
Meaning
not correct or accurate
Example
The information you provided was incorrect.
您提供的信息是错误的。
C1 adjective /ɪnˈflæməbəl/

Inflammable

易燃; 可燃
Meaning
easily set on fire; flammable; combustible
Example
The inflammable material caught fire quickly.
易燃材料很快着火了。
C2 adjective /ˌɪnkəmˈprɛsəbl/

incompressible

不可压缩
Meaning
Not able to be pressed or squeezed into a smaller space.
Example
Liquids are generally considered incompressible.
液体通常被认为是不可压缩的。
C1 verb /ɪmˈpɜːrsəneɪt/

impersonate

假扮
Meaning
to pretend to be another person in order to entertain or deceive
Example
He was arrested for trying to impersonate a police officer.
他因尝试冒充一名警察而被逮捕。
A2 adjective /ɪl/

Ill

生病的; 不舒服的; 健康状况差
Meaning
sick; unwell; in poor health
Example
He felt ill and decided to stay home from work.
他感到生病，决定从工作中呆在家里。
B2 noun /ɪnˈvɒlvmənt/

involvement

参与
Meaning
the act of taking part in something
Example
His involvement in the project was crucial.
他对项目的参与至关重要。
C1 adjective /ˌɪnəˈtɛntɪv/

inattentive

不专心的
Meaning
not paying attention; lacking focus or concentration
Example
The inattentive student missed several important instructions.
那个不专心的学生错过了几条重要指示。
C2 adjective /ˈɪm.pi.əs/

Impious

不敬的; 亵渎神明
Meaning
irreligious; lacking reverence for religion; blasphemous
Example
The impious act shocked the religious community.
不敬的行为震惊了宗教社区。
C2 noun /ˈænʒənuː/

ingenue

天真无邪的年轻女性
Meaning
an innocent, naïve young woman, especially as represented in literature or theater
Example
She played the role of the ingénue in the play with great charm.
她在剧中扮演了那个天真无邪的年轻女性，展现了极大的魅力。
C2 noun /ɪnˌtɛl.ɪˈdʒɛntsi.ə/

intelligentsia

知识分子阶层
Meaning
The group of people engaged in intellectual and cultural pursuits in a society.
Example
The intelligentsia played a key role in shaping public opinion.
知识分子阶层在塑造公众舆论方面发挥了重要作用。
C2 noun /ɪnˈtɛɡ.jʊ.mənt/

integument

外部覆盖物
Meaning
A natural outer covering, such as skin, shell, or rind.
Example
The snake sheds its integument as it grows.
蛇在生长过程中脱掉外部覆盖物。
B1 adverb /ɪnˈkriːsɪŋli/

increasingly

越来越多
Meaning
more and more over time
Example
People are increasingly concerned about climate change.
人们对气候变化的关注越来越多。
C2 adjective /ɪnˈsuːsiənt/

insouciant

无忧无虑
Meaning
Showing a casual lack of concern; carefree.
Example
He gave an insouciant shrug and walked away.
他无忧无虑地耸了耸肩，然后走开了。
C2 adjective /ˌɪɡ.nəˈmɪn.i.əs/

ignominious

可耻的
Meaning
Marked by shame, disgrace, or humiliation.
Example
The team suffered an ignominious defeat in the finals.
队伍在决赛中遭遇了可耻的失败。
C1 noun /ˈɪd.i.əm/

idiom

习语
Meaning
A group of words whose meaning is different from the meanings of the individual words.
Example
The idiom 'break the ice' means to start a conversation in a friendly way.
习语 '打破僵局' 意味着以友好的方式开始对话。
C2 adjective /ɪnˈkɒŋɡruənt/

incongruent

不一致的
Meaning
Not in harmony or keeping with the surroundings or other aspects.
Example
His casual outfit looked incongruent at the formal dinner.
他穿的休闲装在正式晚宴上显得不一致。
C1 adjective /ɪˈnɔːɡjərəl/

Inaugural

开幕
Meaning
marking the beginning of something; first; opening
Example
The president delivered his inaugural speech.
总统发表了他的开幕演讲。
B2 adjective /ɪnˈfɔːrmətɪv/

Informative

有教育意义的
Meaning
giving or providing useful information; educational; instructive
Example
The documentary was very informative and educational.
这部纪录片信息量很大，具有教育意义。
C2 noun /ɪnˈvɛktɪv/

invective

侮辱性语言
Meaning
Insulting, abusive, or highly critical language.
Example
The politician’s speech was filled with invective against his opponents.
政治家的演讲充满了对对手的侮辱性语言。
C1 adjective ˌɪn.krəˈmen.təl

incremental

增量
Meaning
Relating to or denoting an increase or addition, especially one of a series on a fixed scale; proceeding in small stages.
Example
Incremental changes ensure sustainability.
增量变化确保可持续性。
C2 noun /ˌɪntərpəˈzɪʃən/

interposition

干预
Meaning
The act of intervening or coming between two things, often to influence or prevent an outcome.
Example
The manager’s interposition prevented a heated argument from escalating.
经理的干预阻止了激烈争论的升级。
C1 noun /ˈɪn.fən.tri/

Infantry

步兵
Meaning
soldiers marching or fighting on foot; foot soldiers collectively
Example
The infantry advanced across the battlefield on foot.
步兵在战场上走路前进。
B2 adjective aɪˈkɒnɪk

iconic

标志性的
Meaning
Very famous or popular, especially being considered to represent particular opinions or a particular time.
Example
The line "It was the best of times..." is iconic.
那句 "这是最美好的时光..." 是标志性的。
B2 adjective /ɪnˈsɛnsətɪv/

insensitive

迟钝的
Meaning
Showing or feeling no concern for others' feelings.
Example
His insensitive comment hurt her deeply.
他迟钝的评论深深伤害了她。
B2 verb /ɪnˈdʌldʒ/

indulge

纵容
Meaning
to allow oneself to enjoy something enjoyable, often excessively
Example
He indulged in a piece of chocolate cake after dinner.
他在晚餐后沉浸在一块巧克力蛋糕中。
C2 adjective ˌɪm.pəˈtɜː.bə.bəl

imperturbable

沉着冷静
Meaning
Unable to be upset or excited; not easily disturbed.
Example
His imperturbable nature made him a great leader.
他沉着冷静的性格使他成为了一个伟大的领导者。
C2 adjective /ˈɪl bred/

Ill-bred

无教养的
Meaning
lacking good manners; rude; showing poor upbringing
Example
His ill-bred behavior shocked everyone at the dinner party.
他的无教养行为让晚宴上的每个人都震惊。
C1 adjective /ˌɪnədˈmɪsəbl̩/

inadmissible

不可接受
Meaning
Not allowed, especially as evidence in a court of law.
Example
The judge ruled the evidence inadmissible.
法官宣布证据不可接受。
B1 verb /ˌɪntərˈækt/

interact

互动
Meaning
to communicate or work together with someone or something
Example
Students interact with teachers during class discussions.
学生们在课堂讨论中与老师互动。
C2 noun /ɪˈnænɪti/

inanity

荒谬, 愚蠢
Meaning
a nonsensical remark or action; silliness; emptiness
Example
The speech was full of inanities that bored the audience.
演讲充满了让观众感到无聊的荒谬言论。
C1 noun /ˌɪntɪˈmeɪʃən/

intimation

暗示
Meaning
A subtle or indirect hint or suggestion.
Example
She gave no intimation of her plans.
她没有给出任何关于她计划的暗示。
C1 adjective /ˌɪnɪkˈsplɪkəbl/

inexplicable

无法解释
Meaning
Impossible to explain or understand.
Example
The sudden disappearance of the file was inexplicable.
文件的突然消失是无法解释的。
C1 verb /ɪnˈfleɪt/

inflate

充气；抬高
Meaning
to fill with air or gas so it expands; to increase excessively or artificially
Example
The mechanic inflated the tire to the correct pressure.
技工把轮胎充到了正确的气压。
B2 noun /ˌɪnsɪˈkjʊərɪti/

insecurity

不安全感
Meaning
lack of confidence or assurance; a state of uncertainty or vulnerability
Example
Her insecurity made her doubt her abilities despite her experience.
她的不安全感让她怀疑自己的能力。
C2 noun /ˈɪɡ.nəˌmɪn.i/

ignominy

耻辱
Meaning
Public shame, disgrace, or dishonor.
Example
He lived the rest of his life in ignominy after the scandal.
他在丑闻后余生都活在耻辱中。
C2 noun /ɪnˈvɛstɪtʃər/

investiture

授职仪式
Meaning
the formal ceremony of conferring authority, rank, or office
Example
The king held an investiture ceremony for the new knight.
国王为新骑士举行了授职仪式。
C1 noun /ɪˈmiːdiəsi/

immediacy

即时性, 紧迫感
Meaning
The quality of bringing one into direct and instant involvement with something, giving rise to a sense of urgency or excitement.
Example
The immediacy of digital communication has reshaped business operations.
数字通信的即时性已经改变了商业操作。
B2 adjective /ɪnˈækjərət/

Inaccurate

不正确; 错误的; 错误的
Meaning
not correct; containing errors; wrong
Example
The weather forecast was inaccurate yesterday.
昨天的天气预报不准确。
C1 verb /ɪmˈbɛd/

imbed

嵌入
Meaning
To fix firmly or deeply in a surrounding mass.
Example
The journalist imbedded himself with the troops to report firsthand.
记者将自己嵌入部队中以第一时间进行报道。
B2 noun ɪnˈsɛntɪvz

incentives

激励
Meaning
Things that motivate or encourage one to do something.
Example
Tax incentives are used to encourage investment in renewable energy.
税收激励用于鼓励对可再生能源的投资。
B1 adverb /ɪnˈkrɛdɪbli/

incredibly

难以置信地
Meaning
to a great degree; extremely or unbelievably
Example
The view from the top of the mountain was incredibly beautiful.
从山顶看到的景色是难以置信地美丽。
C1 noun ˌɪn.toʊˈneɪ.ʃən

intonation

语调
Meaning
The rise and fall of tone in speech and pronunciation.
Example
Proper intonation enhances the clarity of a speech.
正确的语调提高演讲的清晰度。
C2 noun /ˌɪnədˈvɜːrtəns/

inadvertence

疏忽
Meaning
Failure to pay attention; carelessness.
Example
The error happened through sheer inadvertence.
错误是由于完全的疏忽发生的。
C1 adjective /ɪnˈtjuː.ɪ.tɪv/

intuitive

直觉的
Meaning
Based on instinctive understanding rather than reasoning.
Example
The software has an intuitive design that makes it easy to use.
该软件具有直观的设计，使其易于使用。
C2 noun /ˌɪn.ʌnˈdeɪ.ʃən/

inundation

洪水
Meaning
The act of flooding or overwhelming with water or things.
Example
The town suffered from a severe inundation after the heavy rains.
该市在暴雨后遭受了严重的洪水。
B2 adverb /ɪmˈpɔːtəntli/

importantly

重要地
Meaning
in a way that is of great significance or value
Example
Importantly, the report highlights the need for immediate action.
重要地，报告突出了立即采取行动的必要性。
C1 noun /ˈɪŋklɪŋ/

inkling

预感
Meaning
A slight idea, hint, or suspicion about something.
Example
She had an inkling that he was planning a surprise.
她有一个预感，他正在计划一个惊喜。
B1 verb /ɪnˈfɔ:m/

inform

通知
Meaning
to tell someone about something; to give information
Example
Please inform me when you arrive at the airport.
请在您到达机场时通知我。
C2 noun /ˌɪkθiˈɒlədʒɪst/

ichthyologist

鱼类学家
Meaning
A scientist who studies fish.
Example
The ichthyologist discovered a new species of fish in the river.
鱼类学家在河里发现了一种新的鱼类。
C2 noun /ˌɪnvəˈlɪdɪti/

invalidity

无效性
Meaning
the state of being invalid, legally void, or lacking force or validity
Example
The court ruled that the contract suffered from invalidity.
法院裁定该合同存在无效性。
C1 adjective /ɪmˈpɜːmiəbl/

impermeable

不透水的
Meaning
Not allowing fluid or gas to pass through.
Example
The container is made of impermeable plastic.
这个容器是由不透水的塑料制成的。
A1 preposition /ɪn/

in

在
Meaning
expressing the situation of being enclosed or surrounded by something
Example
She is in the kitchen preparing dinner.
她在厨房准备晚餐。
B1 adjective ˌɪn.dɪˈpen.dənt

independent

独立
Meaning
Not depending on another for livelihood or subsistence; free from outside control; not subject to another's authority.
Example
An independent institution ensures transparency in governance.
一个独立的机构确保政府的透明度。
C1 adjective, noun /ɪnˈdɪkətɪv/

indicative

指示性
Meaning
Serving as a sign or expression of something; in grammar, a mood used to make factual statements.
Example
His tone was indicative of his frustration.
他的语气表明了他的沮丧。
C1 noun /ɪmˈpɜːrtɪnəns/

impertinence

无礼
Meaning
lack of respect; rudeness
Example
The teacher was shocked by the student's impertinence.
老师对学生的无礼感到震惊。
C1 verb /ɪmˈpɛər/

impair

损害
Meaning
to weaken or damage something, especially a function or ability
Example
Smoking can impair your lung capacity.
吸烟可能会损害您的肺部容量。
C1 verb /ɪˈluːmɪneɪt/

illuminate

照亮
Meaning
To light up or make something clearer.
Example
Streetlights illuminate the road at night.
路灯在夜晚照亮了道路。
C2 noun /ɪnˈfrækʃən/

infraction

违规
Meaning
A violation or breach of a rule, law, or agreement.
Example
The student was punished for a minor infraction of the school rules.
学生因轻微违反学校规则而受到惩罚。
C2 noun /ˌɪrɪˈdɛsəns/

iridescence

虹彩光泽
Meaning
a play of lustrous, changing colors like those of a rainbow
Example
The butterfly's wings shimmered with iridescence.
蝴蝶的翅膀闪耀着虹彩光泽。
B2 adjective /ˈɪrɪteɪtɪd/

irritated

恼火的
Meaning
feeling annoyed or impatient; having inflamed or sore physical condition
Example
She felt irritated by the constant noise outside her window.
窗外持续的噪音让她感到恼火。
C1 noun /ɪnˈhɛrɪtər/

inheritor

继承人
Meaning
a person who receives money, property, or a title when someone dies
Example
She became the inheritor of her family's estate.
她成为了家族财产的继承人。
B2 adjective /ɪnˈtɛnsɪv/

intensive

强化
Meaning
Involving a lot of effort, energy, or concentration in a short period of time.
Example
She attended an intensive English course before moving abroad.
她在出国之前参加了一个强化的英语课程。
B2 adjective /aɪˈrɒnɪkəl/

ironical

讽刺的
Meaning
expressing irony; having the nature of irony
Example
Her ironical tone made everyone uncomfortable.
她的讽刺语气让每个人都感到不舒服。
B1 adjective /ˈɪnəsənt/

Innocent

无辜的; 纯洁的; 无害的
Meaning
free from guilt or sin; pure; harmless; naive
Example
The innocent child had no idea that her parents were planning a surprise party.
那个无辜的孩子不知道她的父母正在策划一个惊喜派对。
C1 noun /ˈɪnkwest/

inquest

调查
Meaning
A legal or official inquiry, especially into the cause of a death.
Example
The inquest revealed the cause of the accident.
调查揭示了事故的原因。
C1 adjective /ˌɪndɪˈvɪzəbl/

indivisible

Meaning
Not able to be divided or separated.
Example
The country's unity was indivisible despite differences.