C1 adverb /ˌɪnsɪˈdɛntəli/

incidentally

ちなみに

Meaning

by the way; used to introduce a remark not directly related to the main subject

Example

Incidentally, did you know that she studied in Paris?

ちなみに、彼女がパリで勉強していたことを知っていましたか？

C1 adjective /ˌɪndɪˈstrʌktəbl/

indestructible

壊れない

Meaning

Impossible to destroy or break.

Example

The superhero's shield was said to be indestructible.

スーパーヒーローの盾は壊れないと言われていました。

C2 noun /ˌɪnkrɪˈdjuːləti/

incredulity

不信

Meaning

the state of being unwilling or unable to believe something

Example

She looked at him with incredulity after hearing the strange story.

彼女はその奇妙な話を聞いた後、不信のまなざしで彼を見つめた。

B2 adjective /aɪˈdentɪkəl/

Identical

同一の; 全く同じ

Meaning

exactly the same; not different in any way

Example

The twins look completely identical to each other.

双子は完全に同じに見えます。

B1 noun /ɪnˈstrʌkʃən/

instruction

指示

Meaning

Detailed information telling how something should be done or operated.

Example

Please read the instruction carefully before using the machine.

機械を使用する前に指示をよく読んでください。

B1 verb /ˈɪndʒər/

injure

怪我をさせる

Meaning

to cause physical harm or damage to someone or something

Example

He injured his leg while playing football.

彼はサッカーをしている時に足を怪我した。

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.

箱に書かれた指示に従ってください。

C2 noun /ˌɪntərpəˈzɪʃən/

interposition

介入

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.

マネージャーの介入は、激しい議論がエスカレートするのを防ぎました。

B2 verb /ɪnˈveɪd/

invade

侵入する

Meaning

to enter a place or country forcefully, especially as an enemy

Example

The army invaded the neighboring country.

軍隊は隣国に侵入しました。

A2 adverb /ˌɪnˈdɔːrz/

indoors

屋内で

Meaning

inside a building; within an enclosed space

Example

Because of the rain, everyone stayed indoors.

雨のため、みんな屋内で過ごしました。

C1 noun ɪnˈdɪdʒɪnəs trəˈdɪʃənz

Indigenous Traditions

先住民の伝統

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.

チッタゴン丘陵地帯の先住民の伝統はユニークです。

C1 adjective ˈɪn.lənd

Inland

内陸

Meaning

Situated in the interior of a country; away from the coast.

Example

Inland transport boosts local trade.

内陸輸送は地元の貿易を促進します。

C2 adjective /ˌɪrɪˈlɪdʒəs/

irreligious

無宗教

Meaning

Indifferent or hostile to religion

Example

Some people in the community consider him irreligious because he never attends religious services.

コミュニティの中で、彼は宗教的なサービスに一度も参加しないため、無宗教だと考えられています。

B2 verb /ɪnˈdʌldʒ/

indulge

楽しむ

Meaning

to allow oneself to enjoy something enjoyable, often excessively

Example

He indulged in a piece of chocolate cake after dinner.

彼はディナーの後でチョコレートケーキの一切れを楽しんだ。

C2 noun /ɪnˈtɛmpərəns/

intemperance

節度を欠くこと

Meaning

Lack of moderation or self-control, especially with drinking or eating.

Example

His intemperance in drinking ruined his health.

彼の飲酒の節度を欠くことが健康を害した。

C2 verb ˈɪnʌndeɪt

inundate

洪水で満たす、処理すべき事柄や人々で誰かまたは何かを圧倒する

Meaning

To flood; overwhelm someone or something with things or people to be dealt with

Example

The company was inundated with requests after the advertisement.

広告の後、会社はリクエストで圧倒されました。

B2 verb /ɪˈnɪʃieɪt/

initiate

開始する

Meaning

to begin or start; to introduce someone to a new activity

Example

The company will initiate a new training program.

会社は新しい研修プログラムを開始します。

B1 verb /ɪmˈpɔːrt/

import

輸入する

Meaning

to bring goods or services into a country from abroad; to transfer data

Example

The country imports oil from abroad.

その国は海外から石油を輸入しています。

C1 adjective /ɪnˈtrɛpɪd/

intrepid

勇敢な

Meaning

fearless and adventurous, often used humorously

Example

The intrepid traveler explored the jungle alone.

その勇敢な旅行者は一人でジャングルを探検した。

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.

独立した機関は、ガバナンスの透明性を保証します。

B2 adjective /ˌɪrɪˈzɪstəbəl/

Irresistible

抗し難い

Meaning

too attractive and tempting to be resisted; impossible to resist

Example

The chocolate cake was absolutely irresistible.

チョコレートケーキは絶対に抵抗できないほど魅力的だった。

B1 noun /ˈɪnstrəmənt/

instrument

楽器

Meaning

A tool or device used for a particular purpose, especially for scientific or musical work.

Example

The doctor used a special instrument during the surgery.

医師は手術中に特別な楽器を使用しました。

C1 noun /ˌɪn.dʒəˈnjuː.ɪ.ti/

ingenuity

独創性

Meaning

The quality of being clever, original, and inventive.

Example

His ingenuity led to groundbreaking innovations.

彼の創意工夫は画期的な革新を生み出しました。

B2 noun /ˌɪntərˈfɪərəns/

interference

干渉

Meaning

the action of interfering with something

Example

The radio signal was disrupted due to interference from nearby electronics.

近くの電子機器からの干渉で、ラジオ信号が途絶えました。

C1 verb /ɪnˈkɜːr/

incur

負う

Meaning

To bring upon oneself something undesirable, usually as a result of actions.

Example

He incurred a fine for parking in the wrong place.

彼は間違った場所に駐車して罰金を科せられた。

B1 noun /ɪnˈtɛnʃən/

intention

意図

Meaning

A plan, aim, or purpose behind an action.

Example

Her intention was to finish the project before the deadline.

彼女の意図はプロジェクトを締め切り前に終わらせることだった。

B2 adjective /ˌɪnsɪˈkjʊə/

insecure

不安定

Meaning

not confident or assured; uncertain and anxious

Example

She felt insecure about her performance in the exam.

彼女は試験での自分のパフォーマンスに不安を感じていました。

C1 adjective /ˌɪndɪˈskrɪmɪnət/

indiscriminate

無差別

Meaning

Done without careful judgment; random or haphazard.

Example

The indiscriminate use of pesticides harms the environment.

農薬の無差別な使用は環境に害を与えます。

C2 adjective /ˌɪnkəˈməʊdiəs/

incommodious

不快な

Meaning

Uncomfortably small, cramped, or inconvenient.

Example

We had to stay in an incommodious room during the trip.

旅行中に不快な部屋に泊まらなければなりませんでした。

A2 verb /ɪnˈvaɪt/

invite

招待する

Meaning

to ask someone to come to an event or to do something

Example

We should invite all our friends to the party.

パーティーに友達を招待するべきです。

C1 noun /ɪnˈhɛrɪtər/

inheritor

相続人

Meaning

a person who receives money, property, or a title when someone dies

Example

She became the inheritor of her family's estate.

彼女は家族の財産の相続人となった。

B2 adjective/noun /ɪˈrɑːki/

iraqi

イラクの

Meaning

relating to Iraq or its people

Example

The Iraqi culture is rich and diverse.

イラクの文化は豊かで多様です。

C1 adjective /ɪnˈdiːsənt/

indecent

不品な

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.

彼は不品な発言で注意された。

C1 noun /ˌɪn.səˌbɔːr.dɪˈneɪ.ʃən/

insubordination

反抗

Meaning

Defiance of authority; refusal to obey orders.

Example

The soldier was punished for insubordination during the mission.

その兵士はミッション中の反抗で罰せられました。

C2 adjective /ˌɪnfɪnɪˈtɛsɪməl/

infinitesimal

微細な

Meaning

Extremely small in size or amount; so tiny as to be almost negligible.

Example

The error was so infinitesimal that it didn’t affect the results.

そのエラーは非常に微細で、結果に影響を与えることはありませんでした。

C2 noun /ˈaɪdlər/

idler

怠け者

Meaning

A person who avoids work or spends time lazily.

Example

He was known as an idler who wasted his days.

彼は自分の時間を無駄にするアイドラーとして知られていました。

C1 noun /ˌɪn.dɪˈsɪʒ.ən/

Indecision

優柔不断; 決断力の欠如; 迷い

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.

どの仕事のオファーを受けるかについての優柔不断さが、両方のチャンスを逃す原因となった。

C1 noun /ˈɪntərˌpleɪ/

interplay

相互作用

Meaning

The way in which two or more things have an effect on each other.

Example

The interplay between culture and technology shapes modern life.

文化と技術の相互作用が現代生活を形作っています。

C1 adjective /ɪmˈpɛndɪŋ/

impending

差し迫った

Meaning

about to happen soon, usually something unpleasant or threatening

Example

The villagers were worried about the impending flood.

村人たちは差し迫った洪水を心配していた。

C1 adjective /ɪˈneɪn/

inane

無意味な, 馬鹿な

Meaning

lacking sense, meaning, or significance; silly or pointless

Example

The movie was criticized for its inane dialogue.

その映画は無意味なセリフで批判された。

C1 noun /ɪmˈprɪzənmənt/

imprisonment

投獄

Meaning

the act of putting someone in prison; the state of being confined as punishment

Example

He faced imprisonment for violating the court order.

彼は裁判所の命令に違反して投獄に直面した。

C1 adjective /ˌɪnkɒmprɪˈhɛnsəbl/

incomprehensible

理解不能

Meaning

Impossible or very difficult to understand.

Example

The professor’s lecture was so fast it became incomprehensible.

教授の講義は速すぎて理解不能になった。

C2 adjective /ɪnˈvʌlnərəbl/

invulnerable

無敵

Meaning

Impossible to harm, damage, or defeat.

Example

The fortress was thought to be invulnerable to attack.

その要塞は攻撃に対して無敵だと考えられていた。

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.

予期しない中断のため会議は遅れた。

C1 adjective /ˌɪn.dɪˈspen.sə.bəl/

indispensable

不可欠

Meaning

Absolutely necessary, essential

Example

Water is indispensable for human survival.

水は人間の生存に不可欠です。

B1 verb ɪnˈspaɪər

inspire

インスパイアする

Meaning

To fill someone with the urge or ability to do or feel something, especially creative or noble.

Example

Artemis seeks to inspire future generations.

アルテミスは未来の世代にインスパイアを与えようとしています。

C2 noun /ɪnˈsuːsiəns/

insouciance

無関心

Meaning

Casual lack of concern; indifference.

Example

She carried herself with an air of insouciance, unbothered by the challenges ahead.

彼女は無関心な態度で歩いていた、前にある挑戦を気にせずに。

C2 noun /ɪˌledʒ.əˈbɪl.ə.ti/

Illegibility

読みにくさ

Meaning

the quality of being impossible or difficult to read; unclear writing or print

Example

The doctor's handwriting was famous for its illegibility among the pharmacy staff.

医者の手書きは薬局のスタッフの間でその読みにくさで有名でした。

C1 noun /ɪnˌkɑːsəˈreɪʃən/

incarceration

投獄

Meaning

the state of being imprisoned or confined

Example

The criminal faced years of incarceration for his crimes.

犯人はその犯罪のために長年の投獄を受けた。

C1 adjective /ɪnˈvɛntɪv/

inventive

創造的

Meaning

Having the ability to create or design new things or to think originally.

Example

The inventor was known for his inventive solutions to everyday problems.

発明家は日常の問題に対する創造的な解決策で知られていた。

C2 adjective /ˌɪntərˈniːsaɪn/

internecine

内部紛争

Meaning

Relating to conflict within a group, often causing mutual destruction.

Example

The internecine conflict weakened the organization from within.

内部紛争は組織を内部から弱体化させた

C1 adjective /ˌɪlɪˈdʒɪtɪmət/

illegitimate

不正

Meaning

Not authorized by law, rules, or standards; not recognized as valid.

Example

The court ruled the contract to be illegitimate.

裁判所は契約が不正であると判断しました。

C2 noun /ɪkˈsɔːr.ə/

Ixora

イクソラ

Meaning

a tropical flowering shrub with clusters of small bright red, orange, or yellow flowers

Example

The bright red ixora bushes lined the pathway to the tropical garden.

明るい赤いイクソラの低木が熱帯庭園への小道を囲んでいました。

B2 noun /ɪnˈtɪəriər/

interior

インテリア

Meaning

the inside part of something; inner area of a place or object

Example

The interior of the hotel was beautifully decorated.

ホテルのインテリアは美しく装飾されていました。

B2 adverb /ˌɪndəˈrɛktli/

indirectly

間接的に

Meaning

in a way that is not direct; through an intermediate means or influence

Example

The policy affected small businesses indirectly.

その政策は中小企業に間接的に影響した。

B2 verb /ɪtʃ/

itch

かゆみ

Meaning

to feel an urge to scratch; to have a restless desire

Example

My skin itches from the mosquito bites.

蚊に刺されて肌がかゆいです。

C2 adjective /ˌɪndɪˈfætɪɡəbl̩/

indefatigable

疲れ知らず

Meaning

persisting tirelessly; incapable of being fatigued

Example

Her indefatigable spirit kept the team motivated during the long project.

彼女の疲れ知らずの精神が、長いプロジェクトを通してチームを励ましました。

B1 adjective /ˌɪmpəˈlaɪt/

impolite

無礼

Meaning

Not showing good manners; rude.

Example

It is impolite to interrupt someone while they are speaking.

誰かが話しているときに邪魔をするのは失礼です。

B2 adjective /ˈɪrɪteɪtɪd/

irritated

いらいらした

Meaning

feeling annoyed or impatient; having inflamed or sore physical condition

Example

She felt irritated by the constant noise outside her window.

窓の外の絶え間ない騒音に彼女はいらいらした。

B2 noun /ɪsˈlɑːm/

islam

イスラム教

Meaning

the religion founded by the Prophet Muhammad, based on belief in one God (Allah)

Example

Islam emphasizes peace, justice, and compassion.

イスラム教は平和、正義、そして慈悲を強調します。

C2 adjective /aɪˈsɒ.krə.nəs/

isochronous

等時間間隔で発生する

Meaning

Occurring at equal time intervals; in unison or synchrony.

Example

The pendulum swings are isochronous, repeating at equal intervals.

振り子の動きは等時性があり、等しい間隔で繰り返されます。

C1 adjective /ˌɪndɪˈfɛnsəbl̩/

indefensible

弁護できない

Meaning

not able to be protected or justified

Example

The minister’s remarks were considered indefensible by the public.

大臣の発言は公衆によって弁護できないとみなされました。

C1 adjective /ɪnˈhjuːmən/

Inhuman

非人道的

Meaning

lacking human qualities of compassion and mercy; cruel or barbaric

Example

The prisoners were kept in inhuman conditions.

囚人たちは非人道的な状況で収容されていました。

C1 verb /ɪmˈpɛrɪl/

imperil

危険にさらす

Meaning

To put in danger or at risk.

Example

Reckless driving can imperil the lives of others.

無謀な運転は他人の命を危険にさらす可能性があります。

C2 noun /ˌɪkθiˈɒlədʒi/

ichthyology

魚類学

Meaning

The branch of zoology that deals with fish.

Example

He pursued a degree in ichthyology at the university.

彼は大学で魚類学の学位を取得した。

B2 adjective /ˈɪnfɪnɪt/

infinite

無限

Meaning

limitless or endless in space, extent, or number

Example

The universe is often described as infinite.

宇宙はしばしば無限だと説明されます。

C1 noun /ɪnˈækjʊrəsi/

inaccuracy

不正確さ

Meaning

lack of accuracy or precision; an incorrect or wrong detail

Example

The report contained several factual inaccuracies.

その報告書にはいくつかの不正確さがあった。

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.

彼女は賞を受け取ったとき、自分の幸福を隠すことができませんでした。

C2 noun /ɪnˈtɛstəsi/

intestacy

遺言なしで死亡

Meaning

The condition of dying without having made a valid will.

Example

His estate was divided according to the laws of intestacy.

彼の財産は遺言なしでの法則に従って分けられた。

A2 verb /ɪmˈpruːv/

improve

改善する

Meaning

to make or become better; to enhance quality or condition

Example

Practice helps improve your skills.

練習はあなたのスキルを向上させる手助けをします。

B2 noun /ɪnˈspekʃən/

inspection

検査

Meaning

a careful examination of something, especially to check that it is correct or safe

Example

The building passed the safety inspection last week.

その建物は先週、安全検査に合格しました。

C1 adjective /ˌɪn.səˈbɔːr.dɪ.nət/

insubordinate

命令不服従

Meaning

Defiant of authority; disobedient to orders.

Example

The insubordinate employee refused to follow the manager's instructions.

命令不服従の従業員は、マネージャーの指示に従うことを拒否した。

C1 noun /ɪnˈkɒmpɪtəns/

incompetence

無能

Meaning

Lack of ability, skill, or effectiveness in doing something.

Example

The project failed due to the manager’s incompetence.

プロジェクトはマネージャーの無能のため失敗しました。

Meaning

Not able to be turned aside or diverted.

Example

The judge's indivertible attention was on the case.

B2 verb /ˈɪl.ə.streɪt/

illustrate

説明する

Meaning

to explain or make something clear by using examples, pictures, or comparisons

Example

The teacher used diagrams to illustrate the concept.

先生はその概念を説明するために図を使いました。

C1 noun ˌɪn.ɪˈfɪʃ.ən.si

inefficiency

非効率

Meaning

The state or quality of not achieving maximum productivity; failure to make the best use of time or resources.

Example

Government inefficiency leads to slow project completion.

政府の非効率性がプロジェクトの完了を遅らせる。

C2 adjective /ˈɪm.pi.əs/

Impious

不敬な; 冒涜的

Meaning

irreligious; lacking reverence for religion; blasphemous

Example

The impious act shocked the religious community.

不敬な行為は宗教コミュニティを驚かせました。

C1 adjective /ˌɪndɪˈsaɪsɪv/

Indecisive

優柔不断な

Meaning

unable to make decisions quickly; hesitant; wavering

Example

She was indecisive about which university to attend.

彼女はどの大学に入学すべきか決めかねていた。

C2 noun /ɪˈmɒdəsti/

immodesty

不謹慎

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.

その記事は不謹慎な語調で批判された。

C2 noun /ɪmˈpɒs.tʃər/

Imposture

偽装; 詐欺; 虚偽

Meaning

the practice of deceiving others by pretending to be someone else; fraudulent deception

Example

The elaborate imposture lasted for months before investigators uncovered the truth.

その精巧な詐欺は数ヶ月続き、調査員が真実を明らかにするまで続いた。

C1 verb /ɪmˈpɒvərɪʃ/

impoverish

貧困にする

Meaning

To make someone poor or reduce the quality or richness of something.

Example

The long war impoverished the entire nation.

長い戦争が国全体を貧困にした。

B1 adjective /ˈɪnər/

inner

内面的

Meaning

Located inside or closer to the center; relating to one’s thoughts or feelings.

Example

She shared her inner thoughts with her best friend.

彼女は最良の友達に内面的な思いを共有しました。

C1 noun /ɪnˈtruː.ʒən/

intrusion

不正侵入

Meaning

Unauthorized entry into a system or place without permission

Example

The company detected an intrusion in its server.

会社はサーバーに侵入を検出しました。

B1 noun /ɪnˈstrʌktər/

instructor

インストラクター

Meaning

A person who teaches a subject or skill.

Example

The driving instructor was very patient with new learners.

運転インストラクターは新しい生徒にとても忍耐強かった。

A2 verb /ɪnˈkluːd/

include

含む

Meaning

to have as part of a whole; to contain or comprise

Example

The price includes all taxes.

価格にはすべての税金が含まれています。

C2 noun /ˈɪnroʊd/

inroad

進展

Meaning

An advance or significant progress, often at the expense of something else.

Example

The company made significant inroads into the mobile market.

その会社はモバイル市場で重要な進展を遂げました。

B1 noun ˌɪndɪˈpendəns

independence

独立

Meaning

The fact or state of being independent; freedom from outside control; not being subject to another's authority.

Example

Independence inspired the movement.

独立は運動を刺激した。

C2 adjective /ɪnˈvaɪələt/

inviolate

汚されていない

Meaning

free from violation, injury, or desecration; kept safe and untouched

Example

The ancient temple remained inviolate for centuries.

古代の寺院は何世紀にもわたって汚されることなく保たれました。

C2 noun /ˌɪntərˈlɒkjətər/

interlocutor

対話者

Meaning

a person who takes part in a conversation or dialogue

Example

She was a skilled interlocutor during the debate.

彼女は討論中に優れた対話者でした。

B2 noun /ɪnˈfek.ʃən/

Infection

感染

Meaning

the process of infecting or the state of being infected; a disease caused by germs

Example

The doctor prescribed antibiotics to treat the bacterial infection in her throat.

医師は彼女の喉の細菌感染を治療するために抗生物質を処方しました。

C1 noun /ˈɪnˌmeɪt/

inmate

囚人

Meaning

a person confined to an institution such as a prison or hospital

Example

The prison has over a thousand inmates.

刑務所には千人以上の囚人がいます。

B2 adjective /ɪnˈækjərət/

Inaccurate

不正確; 間違っている; 誤り

Meaning

not correct; containing errors; wrong

Example

The weather forecast was inaccurate yesterday.

昨日の天気予報は不正確でした。

A1 adjective /ɪmˈpɔː.tənt/

important

重要

Meaning

Of great significance or value; likely to have a profound effect on success, survival, or well-being.

Example

Important steps must be taken to address pollution.

汚染に対処するためには重要なステップを踏む必要があります。

A2 verb /ɪnˈkri:s/

increase

増加

Meaning

to become or make something larger in amount, number, or degree

Example

The company plans to increase its production this year.

その会社は今年、生産を増加させる予定です。

A2 adjective ˌɪn.təˈnæʃ.ən.əl

international

国際的な

Meaning

Existing, occurring, or carried on between two or more nations and their citizens.

Example

International standards improve competitiveness.

国際基準は競争力を高めます。

B2 noun /ɪnˈtɛnsəti/

intensity

強度

Meaning

The quality of being extreme, strong, or forceful in degree.

Example

The intensity of the storm frightened the villagers.

嵐の強度は村人たちを驚かせた。

C2 adjective /ˌɪndɪˈsɜːrnəbl/

indiscernible

見分けがつかない

Meaning

Impossible or difficult to see, notice, or distinguish.

Example

The difference between the two shades was almost indiscernible.

二つの色調の違いはほとんど見分けがつかなかった。

B2 adjective /ɪˈmædʒɪnəbl/

imaginable

想像できる

Meaning

Capable of being imagined or conceived.

Example

They offered every imaginable type of food at the festival.

彼らはフェスティバルであらゆる想像できるタイプの食べ物を提供しました。

C1 adjective ˈɪn.tər.ɪm

interim

暫定的

Meaning

In or for the intervening period; provisional or temporary.

Example

Interim governments manage transitional phases.

暫定政府は移行段階を管理します。

B2 noun /ˈɪnˌsaɪt/

insight

洞察力

Meaning

The ability to understand the true nature of something; deep understanding.

Example

Her insight into human behavior made her a successful psychologist.

彼女の人間行動に対する洞察力は、彼女を成功した心理学者にした。

B2 noun /ˈɪdɪət/

idiot

バカ

Meaning

a person who acts in a way that is considered very stupid or foolish

Example

He acted like an idiot at the party last night.

彼は昨晩のパーティーでイディオットのように振る舞った。

C1 noun /ɪmˌpɒsəˈbɪlɪti/

impossibility

不可能性

Meaning

the state or fact of being impossible; something that cannot be done or achieved

Example

Finishing the project in one day was an impossibility.

一日でそのプロジェクトを終えるのは不可能だった。

B1 verb /ˌɪntəˈrʌpt/

interrupt

割り込む

Meaning

to stop someone from speaking or doing something by suddenly saying or doing something

Example

She tried not to interrupt while he was speaking.

彼女は彼が話している間、割り込まないようにした。

C2 noun /ˌɪn.strəˈmɛn.təl.ɪst/

instrumentalist

楽器奏者

Meaning

A person who plays a musical instrument.

Example

The instrumentalist played a beautiful solo on the violin.

楽器奏者はバイオリンで美しいソロを演奏しました。

B2 verb /ɪnˈkwaɪər/

inquire

尋ねる

Meaning

to ask; to investigate

Example

She inquired about the job opening.

彼女は仕事の募集について尋ねました。

C2 adjective /ɪˈnjʊərd/

inured

慣れた

Meaning

Accustomed to something, especially something unpleasant.

Example

After years of hardship, she was inured to suffering.

長年の苦しみの後、彼女は苦しみに慣れていた。

B2 verb /ɪnˈdjuːs/

induce

誘発する

Meaning

to cause or persuade someone to do something; to bring about a result

Example

The doctor induced sleep with a mild sedative.

医師は軽い鎮静剤で睡眠を引き起こしました。

C1 noun/verb /ˈɪmprɪnt/

imprint

刻印

Meaning

A mark or impression made by pressure; to establish or fix firmly in someone's mind.

Example

The event left an indelible imprint on the city's history.

その出来事は都市の歴史に消えない刻印を残した。

C2 noun /ˈɪndɪkənt/

indicant

指標

Meaning

Something that indicates or points to a fact or condition.

Example

High fever is often an indicant of infection.

高熱はしばしば感染の指標となります。

B2 adjective /ɪmˈprɒp.ər/

Improper

不適切な; 不正確な; 不適当な

Meaning

inappropriate; incorrect; not suitable

Example

It would be improper to discuss personal matters in a business meeting.

ビジネス会議で個人的な事柄を議論するのは不適切です。

C1 noun /ɪnˈfɜːməri/

infirmary

診療所

Meaning

A hospital or place where the sick or injured are cared for.

Example

The school had an infirmary for minor injuries.

学校には軽傷のための診療所がありました。

C2 noun /ˌɪnkəˈpæsəti/

incapacity

無能力

Meaning

the lack of ability, power, or fitness to do something

Example

His mental incapacity prevented him from making important decisions.

彼の精神的無能力は、重要な決定を下すのを妨げました。

B2 noun /ˈɪnstɪŋkt/

instinct

本能

Meaning

A natural way of behaving or reacting that does not require learning.

Example

Birds build nests by instinct.

鳥は本能で巣を作ります。

B2 verb /ɪnˈfɜːr/

infer

Meaning

to conclude or deduce something from evidence and reasoning rather than from explicit statements

Example

From his silence, I inferred that he was not happy with the decision.

B2 verb aɪˈdɛntɪfaɪd

identified

特定された

Meaning

To recognize or establish who or what someone or something is.

Example

The root causes of the issue need to be identified.

問題の根本的な原因は特定される必要があります。