inexpedient
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C2 adjective /ˌɪnɪkˈspiːdiənt/

inexpedient

不合适
Meaning
Not advisable, suitable, or practical in the circumstances.
Example
It would be inexpedient to invest without proper research.
在没有适当研究的情况下进行投资是不合适的。
C1 noun /ˈɪn.tə.mə.si/

Intimacy

亲密; 亲近
Meaning
close familiarity or friendship; closeness; a private cozy atmosphere
Example
The couple valued the emotional intimacy they shared more than material possessions.
这对情侣比物质财富更珍视他们分享的情感亲密。
C1 verb /ˌɪn.trəˈspekt/

introspect

自我反省
Meaning
To examine one's own thoughts, feelings, or mental state.
Example
He often introspects before making important decisions.
他常常在做重要决策之前 introspect
C2 noun /aɪˈoʊtə/

iota

极小的数量
Meaning
An extremely small amount.
Example
He did not show an iota of fear.
他一点儿恐惧都没表现出来。
C2 adjective /ɪnˈfɜːrnəl/

infernal

地狱的
Meaning
relating to hell; extremely troublesome or annoying
Example
The workers complained about the infernal noise from the construction site.
工人们抱怨施工现场的地狱般噪音。
C1 verb /ɪnˈdʌkt/

induct

Meaning
to formally admit someone into a position, organization, or office
Example
She was inducted into the university's honor society.
C1 adjective /ɪnˈtrɛpɪd/

intrepid

无畏
Meaning
fearless and adventurous, often used humorously
Example
The intrepid traveler explored the jungle alone.
那个无畏的旅行者独自探险了丛林。
C2 noun /ɪˈnɪkwɪti/

iniquity

不公
Meaning
Immoral or grossly unfair behavior.
Example
The dictator's regime was marked by corruption and iniquity.
独裁者的政权因腐败和不公而闻名。
C1 noun ˌɪnˈsaɪtfʊlnɪs

insightfulness

洞察力，分析能力
Meaning
The capacity to gain an accurate and deep intuitive understanding of a person or thing.
Example
His insightfulness helped solve the complex problem.
他的洞察力帮助解决了复杂的问题。
C2 adjective /ˌɪnkənˈsɪdərəbl/

inconsiderable

微不足道
Meaning
Too small or unimportant to be worth considering.
Example
The donation was not inconsiderable, though smaller than expected.
这笔捐款并不微不足道，尽管比预期的小。
C2 adjective /ˈɪn.dɪ.dʒənt/

indigent

贫困
Meaning
lacking the necessities of life due to poverty; very poor
Example
The hospital offers free care to indigent patients.
医院为贫困患者提供免费护理。
C2 adjective /ˈɪndələnt/

indolent

懒惰
Meaning
Wanting to avoid activity or exertion; lazy.
Example
The indolent cat slept in the sun all afternoon.
懒惰的猫整天躺在阳光下睡觉。
B2 verb ɪnˈvɛst.ɪŋ

investing

投资
Meaning
The act of putting money into financial schemes, shares, property, or a commercial venture with the expectation of achieving a profit.
Example
Investing in stocks can generate long-term wealth.
投资股票可以产生长期财富。
C2 verb /ɪˈmjʊər/

immure

囚禁
Meaning
to confine or enclose someone against their will
Example
The prisoner was immured in a dark cell.
囚犯被禁闭在一个黑暗的牢房里。
C1 adjective /ˌɪnkɒmprɪˈhɛnsəbl/

incomprehensible

难以理解的
Meaning
Impossible or very difficult to understand.
Example
The professor’s lecture was so fast it became incomprehensible.
教授的讲座太快了，以至于变得难以理解。
C1 verb /ɪnˈdaɪt/

indict

起诉
Meaning
to formally accuse someone of committing a serious crime
Example
The grand jury decided to indict the politician for corruption.
大陪审团决定控告该政治家腐败。
C2 adjective /ɪnˈkɒrɪdʒəbəl/

incorrigible

无法纠正的
Meaning
incapable of being corrected, improved, or reformed
Example
He is an incorrigible optimist who never loses hope.
他是一个无法纠正的乐观主义者，从不放弃希望。
B2 noun /ˈɪmɪɡrənt/

immigrant

移民
Meaning
a person who comes to live permanently in a foreign country
Example
The city has welcomed many new immigrants this year.
今年这座城市接纳了许多新的移民。
A2 adjective/noun /ˈaɪrɪʃ/

irish

幸福
Meaning
relating to Ireland, its people, or its language
Example
The Irish countryside is very beautiful.
当她收到奖项时，她无法隐藏自己的幸福。
C2 adjective /ɪˈlɪmɪtəbl/

illimitable

无限
Meaning
Without limits or bounds.
Example
The universe is often described as illimitable.
宇宙常被描述为无限的。
C2 verb /ɪnˈveɪ/

inveigh

严厉批评
Meaning
To speak or write about something with great hostility and criticism.
Example
He inveighed against the corruption in government.
他严厉批评了政府中的腐败。
C2 adjective /ˌɪrɪˈkɒnsɪləbl/

irreconcilable

不可调和的
Meaning
impossible to make compatible or bring into harmony; unable to resolve differences
Example
The couple separated due to irreconcilable differences.
这对夫妇因不可调和的分歧而分开。
C1 noun /ˌɪn.dɪˈsɪʒ.ən/

Indecision

优柔寡断; 怀疑; 犹豫不决
Meaning
the inability to make decisions quickly; uncertainty about what to do
Example
Her indecision about which job offer to accept caused her to miss both opportunities.
她对接受哪个工作机会的犹豫导致她错过了两个机会。
C1 adjective /ɪnˈveɪsɪv/

invasive

侵入性的
Meaning
Tending to spread harmfully, intruding aggressively, or encroaching beyond proper boundaries.
Example
The doctor explained that the procedure was minimally invasive.
医生解释说，该程序是最小的侵入性。
B2 noun /ɪˈluː.ʒən/

Illusion

幻觉
Meaning
a thing that is or is likely to be wrongly perceived or interpreted; a false idea or belief
Example
The magician created a spectacular illusion that made the elephant appear to vanish.
魔术师创造了一个壮观的幻觉，使得大象看起来像消失了一样。
C2 verb /ˌɪmpɔːrˈtuːn/

importune

反复请求
Meaning
To ask someone persistently or pressingly for something
Example
The child importuned his mother for a new toy.
孩子反复请求母亲给他买一个新玩具。
C2 adjective /ˌɪm.pəˈfɛk.tə.bəl/

imperfectible

不可完美
Meaning
Incapable of being made perfect or complete.
Example
Some human qualities are considered imperfectible.
某些人类特质被认为是不可完美的。
C2 noun /ɪnˈɛrənsi/

inerrancy

无误性
Meaning
the belief or quality of being free from error; absolute correctness
Example
Some religious groups strongly affirm the inerrancy of their sacred texts.
一些宗教团体强烈坚持他们圣经的无误性。
C1 verb /ɪnˈhɪbɪt/

inhibit

抑制
Meaning
to prevent or restrain someone or something from acting freely; to hinder
Example
Fear can inhibit personal growth.
恐惧可能会抑制个人成长。
A2 noun/verb /ˈaɪən/ or /ˈaɪərn/

iron

铁 / 熨斗
Meaning
a strong, hard metal used in construction; also to press clothes with heat
Example
He used an iron to smooth his shirt.
他用熨斗把衬衫弄平。
B2 adjective /ɪmˈper.ə.tɪv/

imperative

命令式
Meaning
Of vital importance; crucial; giving or expressing a command.
Example
It is imperative to address the climate crisis immediately.
必须立即解决气候危机。
C1 noun /ɪnˈdɪf.ər.əns/

Indifference

冷漠; 漠视; 冷淡
Meaning
lack of interest, concern, or sympathy; the state of not caring about something
Example
His indifference to his studies resulted in poor grades throughout the semester.
他对学业的冷漠导致了整个学期的成绩很差。
C1 adjective /ɪnˈvɑːlənˌtɛri/

involuntary

不由自主
Meaning
done without will or conscious control
Example
He gave an involuntary shiver when he heard the loud noise.
他听到响亮的声音时不由自主地打了个寒战。
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。
C2 noun /ˈɪkθiəˌsɔːrz/

ichthyosaurs

鱼龙（已灭绝的海洋爬行动物）
Meaning
Extinct marine reptiles that resembled fish and dolphins, dominant during the Mesozoic era.
Example
Ichthyosaurs were swift predators of the ancient seas.
鱼龙是古代海洋的迅猛掠食者。
C2 adjective /ɪnˈsɛnseɪt/

insensate

无情的
Meaning
lacking physical sensation or empathy; without feeling or sensitivity
Example
The dictator's insensate cruelty shocked the world.
独裁者的无情残忍震惊了世界。
C1 noun /ɪnˈɛk.wɪ.ti/

inequity

不公平
Meaning
Lack of fairness or justice; unequal distribution or treatment.
Example
Social inequity continues to be a global issue.
社会不公平仍然是一个全球性问题。
C1 adjective /ɪˈnɜːrt/

inert

惰性
Meaning
lacking the ability or strength to move or act; chemically inactive
Example
The patient remained inert on the bed.
病人躺在床上保持不动。
B2 adjective /ɪnˈfekʃəs/

infectious

传染性的; 有感染力的
Meaning
capable of causing infection or disease; spreading easily from one person to another; able to spread feelings or attitudes such as enthusiasm
Example
Her infectious laughter made everyone in the room smile.
她富有感染力的笑声让大家都笑了。
B2 adjective /ɪˈmɒrəl/

immoral

不道德的
Meaning
Not conforming to accepted standards of morality; unethical or wicked.
Example
He was fired for his immoral behavior.
他因不道德的行为被解雇了。
C2 noun /ɪˈmɒdəsti/

immodesty

不谦逊
Meaning
lack of modesty or decency; behavior or attitude that is overly bold or improper
Example
The article was criticized for its tone of immodesty.
这篇文章因其不谦逊的语气而受到批评。
C2 adjective /ˌɪrɪˈlɪdʒəs/

irreligious

不信教的
Meaning
Indifferent or hostile to religion
Example
Some people in the community consider him irreligious because he never attends religious services.
社区中的一些人认为他不信教，因为他从不参加宗教服务。
B1 adjective /ɪmˈpruːvd/

improved

改进的
Meaning
made better or enhanced in quality or condition
Example
Her health has significantly improved since last month.
她的健康自上个月以来显著改善。
C1 adverb /ɪnˈdɛfɪnətli/

indefinitely

无限期
Meaning
for an unlimited or unspecified period of time
Example
The project has been postponed indefinitely.
该项目已无限期推迟。
C1 noun /ˌɪntərˈmɪʃən/

intermission

中场休息
Meaning
A pause or break, especially during a performance or event.
Example
The play had a twenty-minute intermission.
话剧有二十分钟的中场休息。
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。
A1 noun /ˌɪnfərˈmeɪʃən/

information

信息
Meaning
Facts or knowledge provided or learned about something.
Example
The website provides useful information about travel destinations.
该网站提供有关旅游目的地的有用信息。
B2 noun /ɪnˈfɪnɪti/

infinity

无限
Meaning
A concept describing something without any limit or end.
Example
The universe seems to stretch into infinity.
宇宙似乎无限延伸。
C1 noun /ˌɪnkoʊˈhɪrəns/

incoherence

不一致
Meaning
The quality of being unclear, confused, or lacking logical connection.
Example
His speech was full of incoherence and difficult to follow.
他的演讲充满了不一致，难以跟随。
A2 verb /ɪɡˈnɔːr/

ignore

忽视
Meaning
to refuse to take notice of; to disregard intentionally
Example
She decided to ignore the rude comments.
她决定忽视那些粗鲁的评论。
C2 adjective /ɪnˈɛk.wɪ.tə.bəl/

inequitable

不公平
Meaning
Not fair or just; lacking in fairness or equality.
Example
The distribution of resources was inequitable among the workers.
资源的分配在工人之间是不公平的。
C1 adjective /ɪmˈpɑːrʃəl/

Impartial

公正的; 中立的
Meaning
treating all sides fairly; unbiased; neutral
Example
A good judge must remain impartial throughout the trial.
一个好的法官必须在整个审判过程中保持公正。
B1 noun ˌɪn.stɪˈtjuː.ʃən

institution

机构
Meaning
An organization founded and united for a specific purpose; an established law, practice, or custom.
Example
Institutions play a crucial role in governance.
机构在治理中起着至关重要的作用。
C2 noun /ɪnˈvaɪtər/

invitor

邀请者
Meaning
a person who invites someone to an event, meeting, or place
Example
The invitor greeted all the guests warmly at the entrance.
邀请者在入口处热情地欢迎了客人。
A1 pronoun /aɪ/

i

我
Meaning
used by a speaker to refer to himself or herself
Example
I am learning English every day.
我每天都在学习英语。
C1 adjective /ˌɪrɪˈvɜːrsəbl/

irreversible

不可逆的
Meaning
Not able to be undone, changed, or reversed.
Example
The damage caused by the fire was irreversible.
火灾造成的损失是不可逆的。
C2 verb /ɪmˈpɛnd/

impend

临近
Meaning
to be about to happen; to loom threateningly
Example
Dark clouds suggested that a storm was impeding.
乌云暗示着暴风雨即将来临。
C1 adjective /ˌɪnˌkɒnsɪˈkwɛnʃəl/

inconsequential

微不足道
Meaning
Not important or significant; too small to matter.
Example
The mistake was minor and inconsequential.
这个错误是微不足道的。
C2 noun /ˈɪn.fɪ.del/

Infidel

异教徒
Meaning
a person who does not believe in religion or whose religious beliefs differ from one's own
Example
In historical contexts, crusaders often referred to their enemies as infidels.
在历史背景中，十字军常常把他们的敌人称为异教徒。
C2 verb /ˈɪmprɛɡneɪt/

impregnate

使怀孕 / 浸透
Meaning
To make pregnant; to fill or saturate with something.
Example
The scientist used a method to impregnate the material with resin.
科学家使用一种方法将材料用树脂进行浸透。
B2 adverb /aɪˈrɒnɪkli/

ironically

具有讽刺意味地
Meaning
in a way that is contrary to what is expected or intended
Example
Ironically, the fire station burned down.
具有讽刺意味地，消防站着火了。
C2 adjective /ˌɪnkəmˈbʌstəbl/

incombustible

不燃烧
Meaning
Not capable of catching fire or burning.
Example
This material is incombustible and safe for construction.
这种材料是防火的，适合建筑使用。
C2 noun /ˌɪmbəˈsɪləti/

imbecility

愚蠢
Meaning
Extreme foolishness, stupidity, or weakness of mind.
Example
The plan was abandoned due to its sheer imbecility.
由于其极端的愚蠢，计划被放弃。
A2 adjective/noun /ˈɪndiən/

indian

印度的
Meaning
Relating to India, its people, or their culture.
Example
She loves Indian food, especially biryani.
她喜欢印度食物，特别是比尔亚尼。
C2 noun /ˈɪŋkjʊbəs/

incubus

恶梦般的负担
Meaning
An oppressive or nightmarish burden; in folklore, an evil spirit that lies upon sleeping people.
Example
Debt became an incubus that weighed heavily on the family.
债务成了一个恶梦般的负担，沉重地压在这个家庭上。
C1 noun /ɪmˈpɛd.ɪ.mənt/

impediment

障碍
Meaning
A hindrance or obstruction in doing something; something that prevents progress.
Example
Lack of funds is a major impediment to the project.
资金不足是项目的主要障碍。
C2 noun /ɪˌluːmɪˈnɑːti/

illuminati

光明会
Meaning
a group of people claiming to have special enlightenment or secret knowledge, often linked to conspiracies
Example
Many conspiracy theories involve the Illuminati as a secret world-controlling group.
许多阴谋论涉及光明会，认为它是一个秘密的、控制世界的组织。
C1 adjective /ˈɪmpjəd(ə)nt/

impudent

无礼的，厚颜无耻的
Meaning
not showing due respect for another person; rude
Example
The impudent child talked back to the teacher.
那个无礼的孩子顶撞老师。
B2 noun /ˌaɪ.səˈleɪ.ʃən/

Isolation

隔离
Meaning
the process or fact of isolating or being isolated; separation from other people or things
Example
The patient was kept in isolation to prevent the spread of the infectious disease.
病人被隔离，以防止传染病的传播。
C2 verb /aɪˈtɪnəˌreɪt/

itinerate

旅行
Meaning
To travel from place to place, usually for the purpose of work or preaching.
Example
The missionary itinerated throughout the region to spread the message.
传教士到处旅行传播信息。
B2 noun /ˈɪnvənˌtɔːri/

inventory

清单
Meaning
A complete list of items, such as goods in stock or property.
Example
The shopkeeper checked the inventory before opening the store.
店主在开店前检查了清单。
C2 noun /ˌɪn.təˈvɛn.ʃə.nɪ.zəm/

interventionism

干预主义
Meaning
Government policy of active involvement in economic affairs.
Example
The central bank's interventionism helped stabilize inflation.
中央银行的干预主义帮助稳定了通货膨胀。
C1 adjective /ˌɪn.səˈbɔːr.dɪ.nət/

insubordinate

不服从
Meaning
Defiant of authority; disobedient to orders.
Example
The insubordinate employee refused to follow the manager's instructions.
不服从的员工拒绝遵循经理的指示。
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 noun /ɪnˈtɛmpərəns/

intemperance

放纵
Meaning
Lack of moderation or self-control, especially with drinking or eating.
Example
His intemperance in drinking ruined his health.
他的饮酒放纵毁了他的健康。
C1 adjective /ˌɪlɪˈdʒɪtɪmət/

illegitimate

非法
Meaning
Not authorized by law, rules, or standards; not recognized as valid.
Example
The court ruled the contract to be illegitimate.
法院裁定合同是非法的。
C1 adjective ɪnˈkʌm.bənt

incumbent

有义务的
Meaning
necessary for (someone) as a duty or responsibility.
Example
It is incumbent upon all citizens to obey the law.
所有公民都有义务遵守法律。
C2 noun /ˈaɪ.ərn.wʊd/

Ironwood

铁木
Meaning
a hard, dense wood from various trees; also the tree itself that produces small flowers
Example
The ironwood tree blooms with tiny white flowers.
铁木树开着小白花。
B2 adjective /ɪˈmædʒɪnəbl/

imaginable

可想象的
Meaning
Capable of being imagined or conceived.
Example
They offered every imaginable type of food at the festival.
他们在节日上提供了所有可以想象的食物类型。
C2 verb /ɪˈluːmɪn/

illumine

照亮
Meaning
to light up or make clear
Example
The rising sun illumined the mountain peaks.
初升的太阳照亮了山峰。
B1 verb /ɪnˈvɑːlv/

involve

涉及
Meaning
to include as a necessary part, or to engage someone in an activity
Example
The project will involve several departments working together.
这个项目将涉及多个部门共同合作。
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。
B2 adjective /ˌɪnkəmˈpliːt/

incomplete

不完整
Meaning
Not finished, lacking some parts or not whole.
Example
Her report was incomplete and needed further details.
她的报告不完整，需要更多细节。
C1 noun /ɪnˈsɜːʃən/

insertion

插入
Meaning
the action of inserting something into something else
Example
The insertion of the new data was completed successfully.
新数据的插入已成功完成。
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。
C2 adjective /ɪmˈperɪʃəbəl/

Imperishable

永恒的; 不朽的; 不会腐烂的
Meaning
not subject to decay; lasting forever; eternal
Example
The imperishable beauty of classical art continues to inspire generations.
经典艺术的永恒美丽继续激励着一代又一代。
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。
C1 adjective /ˈɪrɪtəbl/

irritable

Meaning
easily annoyed or made angry
Example
She became irritable after working long hours without rest.
C2 noun /ˌɪnəməˈrɑːtə/

inamorata

Meaning
A woman with whom someone is in love; a female lover.
Example
He wrote a poem dedicated to his inamorata.
C2 noun /ˌɪkθiˈɒlədʒi/

ichthyology

鱼类学
Meaning
The branch of zoology that deals with fish.
Example
He pursued a degree in ichthyology at the university.
他在大学获得了鱼类学学位。
B2 noun /ˌɪntəˈrʌpʃən/

interruption

中断
Meaning
the act of stopping or breaking the continuity of something; a pause caused by an external action
Example
The meeting was delayed due to an unexpected interruption.
会议因为一次意外的中断而被推迟。
C1 noun /ɪˈnɜː.ʃə/

Inertia

惯性；缺乏活动
Meaning
a tendency to do nothing or remain unchanged; lack of activity or movement
Example
The team's inertia prevented them from adapting to the rapidly changing market conditions.
团队的惯性阻止了他们适应迅速变化的市场条件。
C1 adjective /ɪnˈkrɛdjələs/

incredulous

Meaning
unwilling or unable to believe something
Example
He gave her an incredulous look when she claimed she could fly.
C1 verb /ɪnˈvɜːrt/

invert

翻转
Meaning
To turn something upside down or in the opposite position, order, or direction.
Example
He inverted the glass to let the water drain out.
他翻转了玻璃杯，让水流出来。
C2 verb /ˌɪn.trəˈmɪt/

intromit

引入
Meaning
To insert or introduce something into a place or body.
Example
The doctor carefully intromitted the instrument into the wound.
医生小心地将仪器引入伤口。
B2 noun /ɪsˈlɑːm/

islam

伊斯兰教
Meaning
the religion founded by the Prophet Muhammad, based on belief in one God (Allah)
Example
Islam emphasizes peace, justice, and compassion.
伊斯兰教强调和平、公正与慈悲。
C1 noun ɪnˈdɪdʒɪnəs trəˈdɪʃənz

Indigenous Traditions

原住民传统
Meaning
Cultural practices, beliefs, and customs that have been passed down through generations among native peoples.
Example
Indigenous traditions in the Chittagong Hill Tracts are unique.
吉大港山区的原住民传统独特。
B1 adjective /ɪnˈvɑːlvd/

involved

卷入的
Meaning
complicated or engaged in something
Example
She was deeply involved in community service.
她深深地卷入了社区服务。
C1 noun /ˈɪn.tə.lekt/

intellect

智力
Meaning
The ability to think, reason, and understand objectively.
Example
Her intellect is admired by all her colleagues.
她的智力受到所有同事的赞赏。
B1 noun /ɪnˈstrʌkʃənz/

instructions

指示
Meaning
Detailed information on how something should be done or operated.
Example
Please follow the instructions on the box.
请按照盒子上的指示操作。
C1 adjective /ɪnˈtændʒəbl/

intangible

无形的
Meaning
Unable to be touched or grasped; not having a physical presence.
Example
Trust is an intangible quality in relationships.
信任是关系中一种无形的品质。
B2 verb /ˈɪl.ə.streɪt/

illustrate

插图
Meaning
to explain or make something clear by using examples, pictures, or comparisons
Example
The teacher used diagrams to illustrate the concept.
老师用图表来说明这个概念。
C1 adjective /ˌɪnhɒˈspɪtəbl/

inhospitable

不适宜居住的
Meaning
Harsh and difficult to live in; unfriendly or unwelcoming to guests.
Example
The desert is an inhospitable environment for most plants.
沙漠是大多数植物无法生存的环境。
C1 noun /ˌɪnækˈtɪvɪti/

inactivity

不活动
Meaning
the state of not being active physically or mentally; lack of action
Example
Prolonged inactivity can negatively affect both physical and mental health.
长期不活动会对身体和心理健康产生负面影响。
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。
C2 adjective /ɪnˈkɒnstənt/

inconstant

不稳定的
Meaning
frequently changing; not consistent or dependable
Example
His inconstant moods made it difficult to work with him.
他的情绪不稳定使得与他合作变得困难。
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。
C1 noun /ˌɪn.dʒəˈnjuː.ɪ.ti/

ingenuity

独创性
Meaning
The quality of being clever, original, and inventive.
Example
His ingenuity led to groundbreaking innovations.
他的独创性导致了开创性的创新。
A1 conjunction /ɪf/

if

如果
Meaning
used to introduce a condition or supposition
Example
If it rains tomorrow, we will stay home.
如果明天下雨，我们就待在家里。
C2 noun /ɪmˌprɒb.əˈbɪl.ə.ti/

Improbability

不可能性
Meaning
the quality or state of being improbable; unlikely to be true or to happen
Example
The improbability of winning the lottery twice didn't stop her from buying tickets.
两次赢得彩票的可能性几乎为零，但她仍然买了票。
A2 noun /ɪmˈpɔːtəns/

importance

重要性
Meaning
The quality or state of being important; consequence or significance.
Example
The importance of time management cannot be overstated.
时间管理的重要性无法被夸大。
B2 noun ˌɪn.tɪˈɡreɪ.ʃən

integration

整合。统一。
Meaning
The action or process of integrating; the process of combining or adding parts to make a unified whole.
Example
Integration of networks will improve global communication.
网络的整合将改善全球通信。
C2 adjective /ɪˈnɪmɪkəl/

inimical

敌对的 / 不利的
Meaning
tending to obstruct or harm; unfriendly or hostile
Example
The policy was inimical to the country's economic growth.
该政策对该国的经济增长不利。
C2 adjective /ɪnˈɡreɪʃiˌeɪtɪŋ/

ingratiating

奉承的
Meaning
Charming or flattering in a way intended to gain favor.
Example
His ingratiating smile made everyone trust him quickly.
他的奉承笑容让每个人都迅速信任了他。
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。
B2 noun ˈɪnər strɛŋkθ

inner strength

内在力量
Meaning
Mental or spiritual power that helps a person cope with difficulties.
Example
Community service fosters inner strength in individuals.
社区服务促进了个人的内在力量。
C1 adjective /ɪnˈɔːdəbl/

inaudible

听不见的
Meaning
Unable to be heard.
Example
Her voice was almost inaudible over the noise.
她的声音几乎在噪音中听不见。
C1 verb ɪˈnɪʃɪeɪtɪd

initiated

启动
Meaning
Caused a process or action to begin; started something.
Example
The project was initiated to enhance marine biodiversity.
该项目已启动以促进海洋生物多样性。
C2 adjective /ˌɪnfəˈlɪsɪtəs/

infelicitous

不合适的
Meaning
not suitable or well chosen; awkward or unfortunate
Example
His infelicitous remark ruined the atmosphere of the meeting.
他不合适的评论破坏了会议的氛围。
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。
C2 adjective /ˌaɪsəʊˈθɜːrməl/

isothermal

等温
Meaning
Having or maintaining equal or constant temperature.
Example
The experiment was conducted under isothermal conditions.
实验在等温条件下进行。