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.

タイムマネジメントの重要性は過大評価できません。

B2 noun /ˌɪntərˈsɛkʃən/

intersection

交差点

Meaning

a point where two or more things intersect, especially a road or path

Example

The intersection of Main Street and 5th Avenue is always busy.

メインストリートと5番街の交差点はいつも混んでいます。

C1 noun /ˌɪməˈrælɪti/

immorality

不道徳

Meaning

the quality of being immoral; behavior that violates accepted moral standards

Example

The community condemned the immorality of the corrupt officials.

地域社会は腐敗した役人の不道徳を非難した。

C1 noun /ˈɪnkwest/

inquest

調査

Meaning

A legal or official inquiry, especially into the cause of a death.

Example

The inquest revealed the cause of the accident.

調査は事故の原因を明らかにしました。

B2 verb /ˈaɪ.sə.leɪt/

isolate

隔離する

Meaning

To separate something or someone from others.

Example

Doctors tried to isolate the patient to prevent the spread of infection.

医師たちは感染の拡大を防ぐために患者を隔離しようとしました。

C1 adjective /ɪmˈpɜːmiəbl/

impermeable

不透水の

Meaning

Not allowing fluid or gas to pass through.

Example

The container is made of impermeable plastic.

その容器は不透水のプラスチックでできています。

C1 adjective /ɪnˈveə.ri.ə.bəl/

Invariable

不変の; 一定の; 常に同じ

Meaning

never changing; constant; always the same

Example

His invariable routine includes morning exercise and coffee.

彼の不変のルーチンには、朝の運動とコーヒーが含まれています。

C2 adjective /ˌɪnɪˈsɛnʃəl/

inessential

本質的でない

Meaning

not necessary or important; not essential

Example

The report removes all inessential details to stay focused.

その報告書は焦点を保つために本質的でない詳細を削除している。

C1 verb /ˌɪn.tɚˈtwaɪn/

intertwine

密接に接続またはリンクする; 一緒にねじるまたは密接に結合する

Meaning

To connect or link closely; to twist together or combine closely.

Example

Their lives became intertwined through years of friendship.

彼らの生活は長年の友情を通じて絡み合った。

C2 adjective /ɪˈlɪmɪtəbl/

illimitable

無限

Meaning

Without limits or bounds.

Example

The universe is often described as illimitable.

宇宙はしばしば無限であると説明されます。

C1 adverb /ˌɪn.ədˈvɜːr.tənt.li/

Inadvertently

うっかり; ついうっかり; 誤って

Meaning

without being aware of what you are doing; unintentionally; by mistake

Example

She inadvertently deleted the important file while cleaning her computer.

彼女はコンピュータを掃除しているとき、重要なファイルをうっかり削除してしまった。

C2 adjective /ɪmˈpɒndərəbl̩/

imponderable

計り知れない

Meaning

Something difficult or impossible to estimate, assess, or understand

Example

The outcome of the election depends on many imponderable factors.

選挙の結果は、多くの計り知れない要因に依存しています。

C2 adjective ˌɪm.pəˈtɜː.bə.bəl

imperturbable

冷静沈着

Meaning

Unable to be upset or excited; not easily disturbed.

Example

His imperturbable nature made him a great leader.

彼の冷静沈着な性格は、彼を偉大なリーダーにした。

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。

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.

B1 adjective /ˈɪnəsənt/

Innocent

無実の; 純粋な; 無害な

Meaning

free from guilt or sin; pure; harmless; naive

Example

The innocent child had no idea that her parents were planning a surprise party.

その無実の子供は、両親がサプライズパーティーを計画していることを知りませんでした。

B2 noun /ˌɪn.dɪˈkeɪ.ʃən/

Indication

指示; 合図

Meaning

a sign or piece of information that indicates something; a suggestion or hint

Example

The dark clouds were a clear indication that a storm was approaching the area.

暗い雲は嵐がその地域に近づいていることを示す明確な指示でした。

C2 verb /aɪˈdɒləˌtraɪz/

idolatrize

偶像崇拝

Meaning

To worship idols; to regard with excessive devotion or admiration.

Example

They began to idolatrize the statue as a deity.

彼らはその像を神として崇拝し始めました。

C1 noun /ˈɪtʃ.i.nəs/

itchiness

かゆみ

Meaning

The quality or condition of feeling an irritating sensation on the skin that causes a desire to scratch.

Example

Eye itchiness often leads to rubbing.

目のかゆみはしばしば擦る原因となります。

C1 adjective /ˈɪnfəməs/

infamous

悪名高い

Meaning

well known for some bad quality or deed

Example

The dictator was infamous for his cruelty.

その独裁者はその残虐さで悪名高かった。

B1 noun /ˈɪnpʊt/

input

入力、提供された情報

Meaning

information, advice, or data that is put into a system, device, or process

Example

The manager asked for everyone's input on the new project.

マネージャーは新しいプロジェクトに対する全員のインプットを求めました。

C2 adjective /ˌɪn.trəˈmjʊə.rəl/

intramural

学内

Meaning

Occurring within the walls of a single institution, especially a school or college.

Example

The college organizes intramural sports competitions every semester.

大学は毎学期、学内スポーツ競技を開催しています。

B2 noun /ˈɪnvənˌtɔːri/

inventory

インベントリ

Meaning

A complete list of items, such as goods in stock or property.

Example

The shopkeeper checked the inventory before opening the store.

店主は店を開店する前にインベントリを確認しました。

B1 adjective ɪnˈdʌs.tri.əl

industrial

工業的な

Meaning

Relating to or characterized by industry.

Example

Industrial sectors boost exports.

工業部門は輸出を促進する。

C2 noun /ɪnˈvaɪtər/

invitor

招待者

Meaning

a person who invites someone to an event, meeting, or place

Example

The invitor greeted all the guests warmly at the entrance.

招待者は入口で客を温かく迎えた。

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 adjective /ˌɪməˈtɪəriəl/

immaterial

無関係

Meaning

Not important or relevant; lacking physical substance.

Example

The judge ruled that the argument was immaterial to the case.

裁判官はその議論が事件に関係ないと判断しました。

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。

C2 adjective ɪnˈfiː.zə.bəl

infeasible

不可能

Meaning

Not possible to do easily or conveniently; impracticable.

Example

Restoring the forest may become infeasible if destruction continues.

森林の回復は、破壊が続くと不可能になる可能性があります。

C1 noun /ɪnˈsɜːʃən/

insertion

挿入

Meaning

the action of inserting something into something else

Example

The insertion of the new data was completed successfully.

新しいデータの挿入は成功裏に完了しました。

C2 verb /ɪnˈveɪ/

inveigh

激しく批判する

Meaning

To speak or write about something with great hostility and criticism.

Example

He inveighed against the corruption in government.

彼は政府の腐敗に対して激しく批判した。

C2 noun /ɪmˈbroʊlioʊ/

imbroglio

困惑

Meaning

An extremely confused, complicated, or embarrassing situation.

Example

The political imbroglio lasted for months without resolution.

政治的な困惑は数ヶ月間解決なしで続きました。

B2 noun /ˈaɪ.dəl/

Idol

偶像; 崇拝される人物

Meaning

an image or representation of a god used as an object of worship; a person who is greatly admired

Example

The singer became a teenage idol after her hit song topped the charts worldwide.

その歌手はヒットソングが世界中のチャートで1位に達した後、ティーンエイジャーのアイドルとなった。

C2 verb /ɪnˈdʒɛst/

ingest

摂取する

Meaning

To take food, drink, or another substance into the body, usually by swallowing.

Example

The patient must ingest the medicine with water.

患者は水と一緒に薬を摂取する必要があります。

C1 verb /ɪˈmɔːrtəlaɪz/

immortalize

不朽の

Meaning

to preserve the memory of someone or something forever

Example

The statue was built to immortalize the hero’s sacrifice.

その像は、英雄の犠牲を永遠にするために建てられました。

C1 noun /ɪˈnɜː.ʃə/

Inertia

慣性; 活動の欠如

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.

チームの慣性は、急速に変化する市場の状況に適応するのを妨げました。

B2 verb /ɪnˈhæbɪt/

inhabit

住む

Meaning

to live in; to occupy as a dwelling

Example

Many animals inhabit the forest.

多くの動物が森に住んでいます。

C1 verb ɪˈnɪʃɪeɪtɪd

initiated

開始された

Meaning

Caused a process or action to begin; started something.

Example

The project was initiated to enhance marine biodiversity.

プロジェクトは海洋生物多様性を向上させるために開始されました。

C2 adjective /ɪnˈsuːsiənt/

insouciant

無頓着

Meaning

Showing a casual lack of concern; carefree.

Example

He gave an insouciant shrug and walked away.

彼は無頓着に肩をすくめて、歩き去った。

B2 adjective ˈɪn.tɪ.ɡrəl

integral

不可欠

Meaning

Necessary to make a complete whole; essential or fundamental.

Example

Exercise is an integral part of a healthy lifestyle.

運動は健康的なライフスタイルの不可欠な部分です。

C1 adjective /ɪmˈpæsəbəl/

impassable

通行不可能

Meaning

Impossible to travel along or over.

Example

The road became impassable after the heavy snowfall.

大雪の後、道は通行不可能になりました。

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。

C1 adjective /ɪmˈplɔːzəbl/

implausible

信じがたい

Meaning

Not seeming reasonable or probable; unlikely to be true.

Example

The story she told was so implausible that no one believed her.

彼女が話した話はあまりにも信じられないほどで、誰も彼女を信じなかった。

C1 noun /ɪˌreɡjəˈlærɪti/

irregularity

不規則性

Meaning

lack of regularity or consistency; a deviation from what is normal, expected, or orderly

Example

The audit revealed several financial irregularities in the company’s records.

監査により、その会社の記録にいくつかの財務上の不規則性が明らかになった。

C2 noun /aɪˈdɒlətri/

idolatry

偶像崇拝

Meaning

The worship of idols or extreme admiration for someone or something.

Example

The priest condemned the idolatry practiced in the village.

司祭は村で行われている偶像崇拝を非難した。

B2 noun /ˈɪm.pʌls/

Impulse

衝動; 突然の欲求

Meaning

a sudden strong and unreflective urge or desire to act; a driving force or motivation

Example

She bought the expensive dress on impulse and later regretted the purchase.

彼女は衝動で高価なドレスを買い、後でその購入を後悔しました。

C1 verb /ˌɪntəˈsɛkt/

intersect

交差する

Meaning

to cross or pass through each other

Example

The two roads intersect at the city center.

二つの道路は市内中心で交差する。

B1 adjective ˈɪnəveɪtɪv

innovative

革新的な

Meaning

Featuring new methods; advanced and original

Example

Innovative strategies are required to combat pollution.

革新的な戦略が汚染との戦いに必要です。

B2 noun /ɪnˈtɜː.prə.tər/

Interpreter

通訳者; 翻訳者;

Meaning

a person who translates orally from one language into another; someone who explains meaning

Example

The international conference hired professional interpreters to translate speeches in real time.

国際会議は、スピーチをリアルタイムで翻訳するためにプロの通訳者を雇いました。

C2 adjective /ɪnˈklɛmɛnt/

inclement

悪天候

Meaning

unpleasantly cold, wet, or stormy (usually weather)

Example

The match was canceled due to inclement weather.

試合は悪天候のためキャンセルされました。

C1 noun /ɪnˈkɜːrʒən/

incursion

侵入

Meaning

A sudden attack or invasion into a place or territory.

Example

The army repelled the enemy incursion at the border.

軍隊は国境で敵の侵入を撃退した。

C2 adverb /ɪnˈdjuːbɪtəbli/

indubitably

疑いなく

Meaning

Without a doubt; certainly.

Example

She is indubitably the best candidate for the job.

彼女は疑いなくその仕事の最良の候補者です。

B1 noun /ˈɪnkʌm/

income

収入

Meaning

money received for work or through investments

Example

His monthly income is enough to support his family.

彼の月収は家族を支えるのに十分です。

A2 pronoun /ɪtˈsɛlf/

itself

それ自身

Meaning

Used to emphasize the thing just mentioned; by its own power or effort.

Example

The cat cleaned itself after eating.

猫は食べた後、自分で自分をきれいにした。

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。

C2 noun /ˈɪnˌɡreɪt/

ingrate

Meaning

An ungrateful person; someone who shows no appreciation.

Example

He worked hard for his friend, but the ingrate never thanked him.

C1 adjective, noun /ˈɪnvəlɪd/ (adjective), /ɪnˈvælɪd/ (noun)

invalid

無効

Meaning

Not valid; having no force or effect. Also refers to a person too weak or ill to care for themselves.

Example

The court declared the contract invalid.

裁判所は契約を無効と宣言した。

C2 verb /ˌɪn.trəˈmɪt/

intromit

挿入する

Meaning

To insert or introduce something into a place or body.

Example

The doctor carefully intromitted the instrument into the wound.

医者は慎重に器具を傷口に挿入しました。

B2 noun /ɪnˈtɒlərəns/

intolerance

不寛容

Meaning

unwillingness to accept or endure beliefs, behaviors, or conditions different from one's own

Example

The leader was criticized for his intolerance toward other religions.

リーダーは他の宗教に対する不寛容さで批判されました。

C2 noun /ɪnˈkɒnstənsi/

inconstancy

不安定さ

Meaning

The quality of changing frequently or being unreliable.

Example

The inconstancy of the weather makes planning difficult.

天候の不安定さが計画を難しくします。

C1 noun /ˌɪntərˌɒpərəˈbɪləti/

interoperability

相互運用性

Meaning

The ability of computer systems or software to exchange and make use of information.

Example

The interoperability of different software systems ensures seamless workflow.

異なるソフトウェアシステムの相互運用性は、シームレスな作業の流れを確保します。

B2 noun /ɪnˈhæbɪtənt/

inhabitant

住民

Meaning

a person or animal that lives in a particular place

Example

The inhabitants of the village rely on farming for their livelihood.

村の住民は生活のために農業に頼っています。

C2 verb /ɪmˈbruː/

imbrue

汚す

Meaning

To stain, especially with blood.

Example

His hands were imbrued with blood after the battle.

戦いの後、彼の手は血で汚れていた。

C1 verb /ɪnˈvælɪdeɪt/

invalidate

無効にする

Meaning

To make something not valid or legally acceptable.

Example

The new evidence may invalidate the previous ruling.

新しい証拠が前の判決を無効にするかもしれません。

B1 verb ˈɪndɪkeɪts

indicates

示す

Meaning

Point out; show; be a sign or symptom of; suggest as a desirable or necessary course of action.

Example

The rising trend indicates an urgent need for action.

上昇している傾向は、行動が急務であることを示しています。

C1 adjective /ɪnˈtɜːrmənəbl/

interminable

終わりのない

Meaning

Seemingly endless; having no apparent end.

Example

The meeting felt interminable and exhausting.

会議は終わりのない疲れるもののように感じた。

C1 verb /ˈɪmprəvaɪz/

improvise

Meaning

To create or perform something spontaneously without preparation.

Example

The actor had to improvise his lines when he forgot the script.

B2 verb /ˈɪr.ɪ.teɪt/

irritate

イライラさせる

Meaning

To make someone annoyed or angry; to cause discomfort or inflammation.

Example

Rubbing your eyes can irritate them.

目をこすると、それが刺激になることがあります。

C1 verb /ɪmˈpɛər/

impair

損なう

Meaning

to weaken or damage something, especially a function or ability

Example

Smoking can impair your lung capacity.

喫煙は肺活量を害する可能性があります。

B2 adjective /ɪsˈlɑːmɪk/

islamic

イスラームの

Meaning

relating to Islam, its followers, or its teachings

Example

The city has many Islamic cultural centers.

その都市には多くのイスラーム文化センターがあります。

B2 adjective /ˌɪntəˈpɜːsənl/

interpersonal

対人

Meaning

Relating to relationships or communication between people.

Example

He has excellent interpersonal skills and gets along well with others.

彼は優れた対人スキルを持っており、他の人とうまくやっていきます。

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。

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。

C1 adjective /ˌaɪdiəˈlɪstɪk/

Idealistic

理想主義的

Meaning

pursuing high principles or ideals; unrealistically optimistic

Example

She has an idealistic view of changing the world.

彼女は世界を変えるという理想主義的な見方を持っています。

C1 adjective /ˌɪntərˈtwaɪnd/

intertwined

幸福

Meaning

closely connected or twisted together

Example

Their lives became deeply intertwined after the accident.

彼女は賞を受け取ったとき、幸せを隠せませんでした。

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。

B2 adjective /ˈɪn.tɪ.mət/

Intimate

親密な; 個人的な; 詳細な知識

Meaning

close in friendship; private and personal; detailed knowledge

Example

They have an intimate friendship that has lasted for decades.

彼らは何十年にもわたる親密な友情を持っています。

C1 adjective ˌɪm.pəˈsɛp.tɪ.bəl

imperceptible

気づかれない

Meaning

So subtle or gradual that it is difficult to notice or perceive

Example

The changes in his behavior were imperceptible at first.

彼の行動の変化は最初は気づかれないものでした。

A2 adjective /ˈɪn.dɔːr/

indoor

屋内の

Meaning

situated, occurring, or used inside a building

Example

Indoor plants can improve air quality at home.

屋内の植物は家の空気の質を改善できます。

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。

C2 adjective /ɪnˈkɑːdʒɪtənt/

incogitant

無思慮な

Meaning

Lacking thought; inconsiderate or thoughtless.

Example

It was incogitant of him to make such a rude comment.

彼がそんな失礼なコメントをするのは無思慮なことでした。

A2 noun /ˌɪnvɪˈteɪʃən/

invitation

幸せ

Meaning

a written or spoken request to attend an event or to participate in something

Example

She sent me an invitation to her wedding.

彼女は賞を受け取ったとき、自分の幸せを隠すことができませんでした。

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 /ˌɪrɪˈprɛsəbl̩/

irrepressible

抑制できない

Meaning

Impossible to control or restrain.

Example

She had an irrepressible urge to laugh during the speech.

彼女はスピーチ中に抑制できない笑いの衝動を隠すことができませんでした。

C1 adjective /ɪnˈsɛnsəbl/

insensible

無意識

Meaning

Unconscious; unaware of or indifferent to something.

Example

He was insensible to the cold as he lay in the snow.

彼は雪の中で横たわっているとき、寒さに無意識でした。

C1 noun /ɪnˈdem.nə.ti/

Indemnity

補償

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.

保険会社は洪水による損害に対して完全な補償を提供しました。

C2 noun /ɪˈreɪdiəns/

irradiance

放射輝度

Meaning

the quality of shining brightly; the intensity of light falling on a surface

Example

The irradiance of the sun at noon was overwhelming.

正午の太陽の放射輝度は圧倒的でした。

C2 noun /ɪˈnɪkwɪti/

iniquity

不正

Meaning

Immoral or grossly unfair behavior.

Example

The dictator's regime was marked by corruption and iniquity.

独裁者の政権は腐敗と不正で特徴づけられていました。

C2 adjective /ɪnˈkɒntɪnənt/

incontinent

失禁

Meaning

lacking control over urination or defecation; lacking self-restraint

Example

The patient was incontinent after surgery.

手術後、患者は失禁していた。

B2 noun /ɪnˈfɪnɪti/

infinity

無限

Meaning

A concept describing something without any limit or end.

Example

The universe seems to stretch into infinity.

宇宙は無限に広がっているように見える。

C2 adjective /ɪmˈplækəbl/

implacable

容赦しない

Meaning

unable to be appeased, calmed, or pacified

Example

The soldiers faced an implacable enemy who refused to surrender.

兵士たちは降伏を拒否した容赦しない敵に直面した。

A2 adverb /ɪˈmiːdiətli/

immediately

直ちに

Meaning

at once; without delay

Example

She responded immediately to the emergency call.

彼女は緊急の電話に直ちに応答した。

C1 noun /ɪnˈdʌstriəsnəs/

industriousness

勤勉

Meaning

The quality of being hardworking and diligent.

Example

His industriousness earned him a promotion at work.

彼の勤勉さは、仕事で昇進をもたらしました。

C1 noun /ˌɪmɔːrˈtæləti/

immortality

不死; 永遠の命

Meaning

the state of living forever; eternal life or lasting fame beyond death

Example

Many ancient cultures believed that heroes could achieve immortality through great deeds.

多くの古代文化では、英雄が偉業によって不死を得られると信じられていた。

C2 adjective /ˌɪn.ɪˈlʌk.tə.bəl/

ineluctable

Meaning

Impossible to avoid or escape; inevitable.

Example

Death is an ineluctable part of human existence.

A1 adjective /ˈɪntrəstɪŋ/ or /ˈɪntəˌrɛstɪŋ/

interesting

面白い

Meaning

Arousing curiosity or attention; holding one’s interest.

Example

The documentary about space was very interesting.

宇宙についてのドキュメンタリーはとても面白かった。

C1 noun /ˈɪd.i.əm/

idiom

イディオム

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.

イディオム '氷を破る' は、友好的な方法で会話を始めることを意味します。

C1 adjective /ˌɪnækˈsɛsəbl/

inaccessible

アクセスできない

Meaning

unable to be reached, entered, or understood

Example

The remote village is almost inaccessible during the rainy season.

その遠隔地の村は雨季にはほとんどアクセスできません。

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。

C1 adjective /ɪnˈdʌstriəs/

industrious

勤勉な

Meaning

Hardworking and diligent in one's duties.

Example

She is an industrious student who always completes her assignments on time.

彼女は常に期限通りに課題を終わらせる勤勉な学生です。

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。

C1 adjective /ɪnˈdʒʊəriəs/

injurious

有害な

Meaning

Causing or likely to cause harm or damage.

Example

Smoking is injurious to health.

喫煙は健康に有害です。

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。

C2 adjective /ˌaɪsəʊˈθɜːrməl/

isothermal

等温

Meaning

Having or maintaining equal or constant temperature.

Example

The experiment was conducted under isothermal conditions.

実験は等温条件で行われました。

A2 noun /ˈɪlnəs/

illness

病気

Meaning

A condition of being unwell or suffering from a disease.

Example

She missed school due to a serious illness.

彼女は深刻な病気のため学校を休んだ。

B2 adjective /ˈɪmɪnənt/

imminent

差し迫った

Meaning

About to happen; likely to occur very soon.

Example

Dark clouds signaled that a storm was imminent.

暗い雲は嵐が迫っていることを示していた。

C1 noun /ˌɪnkoʊˈhɪrəns/

incoherence

不整合

Meaning

The quality of being unclear, confused, or lacking logical connection.

Example

His speech was full of incoherence and difficult to follow.

彼のスピーチは不整合で、理解するのが難しかった。

C1 noun /aɪl/

isle

小さな島

Meaning

A small island or peninsula, often poetic or literary.

Example

They spent their honeymoon on a beautiful tropical isle.

彼らは美しい熱帯の島でハネムーンを過ごしました。

C2 adjective /ˌɪmpɪˈkjuːniəs/

impecunious

貧乏

Meaning

Having little or no money; poor.

Example

He grew up in an impecunious family.

彼は貧乏な家族で育ちました。

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 noun /ˌɪkθiˈɒlədʒɪst/

ichthyologist

魚類学者

Meaning

A scientist who studies fish.

Example

The ichthyologist discovered a new species of fish in the river.

魚類学者は川で新しい魚の種を発見しました。

B2 adjective /ɪmˈplɪsɪt/

implicit

暗黙の

Meaning

Suggested or understood without being directly stated.

Example

Her trust in him was implicit.

彼女の彼に対する信頼は暗黙のものでした。

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。

C1 adjective /ɪnˈflɛksəbl/

inflexible

柔軟性がない

Meaning

Not able to bend or change; unwilling to change ideas or behavior.

Example

His inflexible attitude made negotiations difficult.

彼の柔軟性がない態度は交渉を難しくしました。

C2 noun /ɪmˈpruː.dəns/

Imprudence

無分別; 不注意; 軽率

Meaning

the quality of being imprudent; lack of care for consequences; recklessness

Example

His financial imprudence led to bankruptcy within just two years.

彼の財務の無分別は、わずか2年で破産を招いた。

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 adjective /ˌɪnsərˈmaʊntəbl/

insurmountable

克服不可能

Meaning

Too great to be overcome.

Example

The explorers faced insurmountable odds in the desert.

探検者たちは砂漠で克服不可能な障害に直面した。

C1 adjective ɪn ˈfleɪ.ʃə.ner.i

inflationary

インフレ的

Meaning

Characterized by or tending to cause monetary inflation; relating to rising prices.

Example

The government took measures to control inflationary pressures.

政府はインフレ圧力を制御するために措置を講じた。

C2 verb /ˌɪntərˈpoʊz/

interpose

Meaning

To place or insert between one thing and another; to intervene in a situation.

Example

He quickly interposed himself between the fighters to stop the quarrel.

C1 adjective /ɪnˈvɜːs/

Inverse

逆の; 反対の

Meaning

opposite in order, nature, or effect; reversed

Example

There is an inverse relationship between price and demand.

価格と需要の間に逆の関係があります。

C1 adjective /ˌɪn.səbˈstæn.ʃəl/

insubstantial

不十分な

Meaning

Lacking strength, substance, or solidity.

Example

The evidence provided was insubstantial and unconvincing.

提供された証拠は不十分で説得力がなかった。