C1 adjective /ʌnˈɡɑː.dɪd/

Unguarded

無防備な

Meaning

not protected or defended; careless about revealing private thoughts or information

Example

In an unguarded moment, she revealed her true feelings about the project.

油断した瞬間、彼女はそのプロジェクトについての本当の気持ちを明かした。

C1 adjective /ʌnˈweɪ.vər.ɪŋ/

unwavering

揺るぎない

Meaning

Steady or resolute; not wavering.

Example

He showed unwavering dedication to his goal.

彼は目標に対する揺るぎない献身を示しました。

B2 noun /ˈjuː.sɪdʒ/

Usage

使用

Meaning

the action of using something; the way in which words are used in a language

Example

The dictionary explains the correct usage of difficult words.

辞書は難しい言葉の正しい使い方を説明しています。

B1 verb /ʌnˈræp/

unwrap

包みを開ける

Meaning

remove wrapping or covering from something; reveal something gradually or clearly

Example

She carefully unwrapped the gift with excitement.

彼女は興奮しながら慎重に贈り物の包みを開けた。

C1 adjective /ʌnˈsɪvəl/

Uncivil

無礼な; 不作法な;

Meaning

not polite or courteous; rude and discourteous in behavior

Example

His uncivil remarks during the meeting offended everyone present.

会議中の彼の無礼な発言は、出席者全員を不快にさせた。

C2 adjective /ʌnˈsʌlid/

unsullied

汚れのない

Meaning

not spoiled or made impure; perfectly clean or pure

Example

His reputation remained unsullied despite the accusations.

彼の評判は告発にもかかわらず汚れのないままでした。

C2 verb /ʌpˈbreɪd/

upbraid

叱る

Meaning

To scold or criticize someone harshly.

Example

The teacher upbraided the student for being late again.

教師は学生がまた遅刻したことを叱りました。

B2 adjective /ʌnˈkwɒl.ɪ.faɪd/

Unqualified

資格がない; 経験不足の;

Meaning

not having the necessary skills or qualifications; complete or absolute

Example

He was unqualified for the engineering position due to lack of experience.

彼は経験不足でエンジニアの職に不適格でした。

A2 noun /ˈʌndərwɛr/

Under wear

下着

Meaning

clothing worn under other clothes, next to the skin

Example

She bought new underwear from the department store.

彼女はデパートで新しい下着を買いました。

B1 adjective /ˈɜːrbən/

urban

都市的な

Meaning

related to, characteristic of, or situated in a city or town

Example

Urban areas often have higher population density than rural areas.

都市部は、農村部よりも人口密度が高いことがよくあります。

B1 adjective /ˌʌnˈɪntrəstɪŋ/

uninteresting

つまらない

Meaning

not holding attention or curiosity; boring

Example

The lecture was uninteresting and difficult to stay focused on.

その講義はつまらなく、集中するのが難しかった。

B2 adjective /ʌnˈkɒn.ʃəs/

Unconscious

無意識; 意識を失った

Meaning

not awake and aware of one's surroundings; done or existing without one realizing

Example

The patient was unconscious for several hours after the surgery.

患者は手術後、数時間無意識の状態でした。

A1 pronoun /ʌs/

us

私たち

Meaning

used to refer to the speaker and one or more other people as the object of a verb or preposition

Example

She gave us a gift.

彼女は私たちに贈り物をくれました。

A2 preposition /əˈpɒn/

upon

の上で

Meaning

on or immediately after

Example

Upon hearing the news, he rushed to the hospital.

ニュースを聞いた後、彼は病院に急いだ。

B2 noun /ʌnˈsɜːrtənti/

Uncertainty

不確実性; 疑念または確信の欠如

Meaning

the state of being uncertain; doubt or lack of sureness

Example

The uncertainty about the weather delayed our trip.

天気についての不確実性が私たちの旅行を遅らせた。

C1 adjective /ˌʌn.əˈdʌl.tə.reɪ.tɪd/

Unadulterated

純粋

Meaning

not mixed or diluted with any different or extra elements; pure

Example

She felt unadulterated joy when she heard the news.

彼女はそのニュースを聞いたとき、純粋な喜びを感じました。

B1 adjective /ʌnˈseɪf/

Unsafe

危険な; 危ない;

Meaning

involving or causing danger or risk; not protected from harm

Example

It is unsafe to walk alone in this neighborhood at night.

この地域では夜間に一人で歩くのは危険です。

B2 adjective /ˌʌnəˈfɪʃ.əl/

Unofficial

非公式な

Meaning

not officially authorized or confirmed; informal

Example

The unofficial results showed a close race.

非公式な結果は接戦を示しました。

A2 conjunction /ʌnˈlɛs/

unless

もし～でない限り

Meaning

except if

Example

We won't go unless it stops raining.

雨が止まない限り、私たちは行きません。

A2 adjective /ʌnˈkʌmfətəbl/

Uncomfortable

不快

Meaning

causing or feeling physical or emotional discomfort

Example

He felt uncomfortable during the long meeting.

長い会議の間、彼は不快に感じました。

C2 noun /ɜːrˈbænɪti/

urbanity

都会的な気品

Meaning

refined courtesy, elegance, and sophistication in manner

Example

Her urbanity made her popular among diplomats and leaders.

彼女の都会的な気品は、外交官やリーダーの間で人気を集めました。

A2 adjective /ʌnˈhæp.i/

Unhappy

不幸な; 悲しい

Meaning

not happy; feeling sad or displeased; unfortunate or undesirable

Example

He was unhappy with the results of his exam.

彼は試験の結果に不満でした。

B2 adjective /ʌnˈbæləns/

Unbalanced

不均衡な; 不安定な

Meaning

not balanced; lacking stability or equilibrium; mentally unstable

Example

The unbalanced table kept wobbling.

不均衡なテーブルは揺れ続けていた。

B2 adjective /juːˈnæn.ɪ.məs/

Unanimous

全会一致

Meaning

fully in agreement; shared by all

Example

The committee reached a unanimous decision.

委員会は全会一致の決定を下しました。

B2 adjective /ˌʌnkənˈvɛnʃənl/

unconventional

型破りの

Meaning

not based on or conforming to what is generally done or believed

Example

Her unconventional approach to teaching inspired her students to think creatively.

彼女の型破りの教育アプローチは、生徒たちに創造的に考えるよう促しました。

B1 verb /ʌnˈpæk/

unpack

荷解きする

Meaning

to remove items from a container; to explain or analyze something in detail

Example

After arriving home, she began to unpack her suitcase.

家に着いた後、彼女はスーツケースの荷解きを始めた。

B2 adjective /ʌnˌkənˈdɪʃ.ən.əl/

Unconditional

無条件の

Meaning

not subject to any conditions; complete and absolute

Example

She offered her unconditional support to her friend in need.

彼女は困っている友人に無条件のサポートを提供しました。

C1 noun /ˈʌp.rɔːr/

Uproar

騒動; 騒ぎ; 騒音

Meaning

a loud and emotional noise or disturbance; public outcry

Example

The announcement caused an uproar among the students.

その発表は学生たちの間で騒動を引き起こしました。

B2 adjective /ʌnˈθɪŋkəbl/

Unthinkable

想像を絶する

Meaning

impossible to conceive or imagine; beyond belief or consideration

Example

It was unthinkable that such a tragedy could happen in our peaceful town.

私たちの平和な街でそのような悲劇が起こるなんて、想像を絶していました。

C1 adjective /ʌnˈɜːrθli/

unearthly

超自然的

Meaning

Strange or unnatural in a way that seems not of this world

Example

The forest was filled with an unearthly glow.

森は超自然的な輝きで満たされていました。

B2 verb /ʌpˈhoʊld/

uphold

維持する

Meaning

to maintain or support a principle, law, or decision

Example

The judge promised to uphold justice at all costs.

裁判官は、どんな犠牲を払っても正義を守ると約束しました。

B2 adjective /ʌn.rɪˈleɪ.tɪd/

Unrelated

無関係な; 関連していない

Meaning

having no connection or relationship; not connected by family ties

Example

The two incidents were completely unrelated to each other.

二つの出来事は完全に無関係だった。

C1 adverb /ˌʌnkənˈvɛnʃənəli/

unconventionally

型破りに

Meaning

in a way that is not based on or conforming to accepted standards or norms

Example

She dresses unconventionally, mixing bold colors and patterns that surprise everyone.

彼女は型破りに服装をしており、大胆な色と柄を組み合わせて皆を驚かせる。

C1 adjective /juːˈbɪkwɪtəs/

ubiquitous

普遍的

Meaning

Existing or being everywhere at the same time.

Example

Social media has become ubiquitous among young people.

ソーシャルメディアは若者の間で普及しています。

C1 verb /ˈʌndərkʌt/

undercut

Meaning

to sell at a lower price than a competitor; to weaken or undermine something

Example

The company tried to undercut its rivals by offering lower prices.

B1 adjective /ʌnɪmˈplɔɪd/

Unemployed

失業中

Meaning

without a job; not having paid work

Example

He has been unemployed for six months now.

彼はすでに6ヶ月間失業しています。

B2 adjective /ʌnˈfɪt/

Unfit

不適格; 不適当;

Meaning

not in good physical condition; unsuitable or inappropriate

Example

He was declared unfit for military service due to his poor health.

彼は健康状態が悪いため、軍務には不適格と宣告されました。

B2 adjective /ʌnˈskɪld/

Unskilled

未熟な; 技術のない労働者

Meaning

lacking technical training or ability; not requiring special skills

Example

Many unskilled workers are looking for training opportunities.

多くの未熟な労働者がトレーニングの機会を探しています。

A1 adjective /ˈjuːs.fəl/

Useful

役に立つ; 実用的な

Meaning

having a beneficial purpose; practical

Example

This tool is very useful for fixing problems.

このツールは問題を解決するために非常に役立ちます。

C2 adjective /ʌnˈflæpəbəl/

unflappable

冷静沈着

Meaning

calm and composed, especially in difficult situations

Example

Despite the crisis, he remained unflappable and confident.

危機にもかかわらず、彼は冷静沈着で自信に満ちていた。

B2 adjective /ʌnˈtʃeɪndʒəbəl/

Unchangeable

変更不可能な; 固定された;

Meaning

not able to be changed or altered; fixed and permanent

Example

The laws of physics are unchangeable principles that govern the universe.

物理法則は変更不可能な原則であり、宇宙を支配しています。

C1 verb /ʌpˈruːt/

uproot

引き抜く

Meaning

To pull something out of the ground; to remove or displace completely.

Example

They uprooted the old tree from the garden.

彼らは庭から古い木を引き抜いた。

B1 noun /ˌʌnɪmˈplɔɪmənt/

Unemployment

失業

Meaning

the state of being unemployed; lack of paid work

Example

The unemployment rate has increased significantly this year.

今年の失業率は大幅に増加しました。

C1 adjective /ʌnˈsɪvəlaɪzd/

Uncivilized

未開の; 野蛮な;

Meaning

not developed in terms of civilization; lacking social organization and culture; barbarous

Example

The explorers encountered an uncivilized tribe deep in the Amazon rainforest.

探検家たちはアマゾンの雨林の奥深くで未開の部族に出会った。

C2 verb /ˈʌndjʊleɪt/

undulate

波打つ

Meaning

To move with a smooth, wave-like motion.

Example

The snake undulated across the sand.

ヘビは砂の上をうねうねと進んでいった。

C1 adjective /ʌnˈsoʊld/

unsold

未販売の

Meaning

not sold; remaining without a buyer

Example

The unsold goods were returned to the warehouse.

未販売の商品は倉庫に戻されました。

B2 adjective /ʌnˈstɛdi/

unsteady

不安定な

Meaning

not firm or stable; likely to change or fail

Example

She felt unsteady on her feet after the long journey.

長旅の後、彼女は足元が不安定だった。

A1 adverb /ʌp/

up

上

Meaning

towards a higher position or level

Example

He climbed up the ladder quickly.

彼はすばやくはしごを上った。

B2 adjective /ʌnˈiːvən/

Uneven

不均一; 凹凸のある

Meaning

not level or smooth; not regular or consistent

Example

The road was uneven and full of potholes.

その道は不均一で、穴だらけだった。

B2 adjective /ˌʌnəˈweər/

Unaware

無自覚; 知らない; 気づかない

Meaning

not knowing or realizing; having no knowledge of something

Example

She was completely unaware of the danger.

彼女はその危険に完全に気づいていなかった。

B2 adjective /ˌʌn.kəʊˈɒp.ər.ə.tɪv/

uncooperative

非協力的な

Meaning

not willing to help or work with others; unhelpful

Example

The witness was uncooperative and refused to answer questions.

証人は非協力的で、質問に答えることを拒否した。

A2 adjective /ʌnˈtaɪdi/

Untidy

散らかった; 無秩序な;

Meaning

not neat or orderly; messy and disorganized

Example

Her untidy room was filled with clothes scattered everywhere.

彼女の散らかった部屋は、どこにでも散らばった服でいっぱいでした。

C1 adjective ʌnˈwɔːr.rən.tɪd

unwarranted

不当な

Meaning

Not justified or necessary; without good reason.

Example

His anger toward the staff was completely unwarranted.

スタッフに対する彼の怒りは完全に不当でした。

C1 adjective /ˌʌnˈpɑr.də.nə.bəl/

Unpardonable

許されざる

Meaning

too bad to be forgiven; inexcusable

Example

His betrayal of trust was an unpardonable offense.

彼の裏切りは許されざる犯罪でした。

C1 adjective /ˌʌnbɪˈliːvɪŋ/

unbelieving

信じない

Meaning

Not willing or able to believe; skeptical or doubtful

Example

She gave him an unbelieving look when he claimed to have met a celebrity.

彼が有名人に会ったと主張したとき、彼女は彼に信じない目を向けた。

B2 noun /ˌʌndəˈɡrædʒuət/

undergraduate

学部生

Meaning

a student who has not yet earned a bachelor's degree

Example

She is an undergraduate studying computer science.

彼女はコンピュータサイエンスを学んでいる学部生です。

B2 adjective /ʌnˈfeɪv(ə)rəbəl/

unfavorable

不利な

Meaning

not beneficial or advantageous; showing disapproval or opposition

Example

The proposal received an unfavorable response from the committee.

その提案は委員会から不利な反応を受けました。

B2 noun /ʌnəˈbɪləti/

unability

無能力

Meaning

the state of being unable to do something; incapacity

Example

His unability to solve the problem caused delays in the project.

彼の問題を解決する無能力はプロジェクトの遅延を引き起こした。

C1 noun /ˈjuːnɪsən/

unison

ユニゾン

Meaning

Simultaneous performance or utterance of action or speech.

Example

The choir sang in unison.

合唱団はユニゾンで歌いました。

C2 adjective /ʌnˈstɪntɪŋ/

unstinting

惜しみなく

Meaning

given generously without holding back

Example

She received unstinting support from her family.

彼女は家族から惜しみなく支援を受けた。

B1 adjective /ʌnˈtru/

Untrue

嘘の; 間違った

Meaning

not true; false; incorrect

Example

His statement about the incident was completely untrue.

彼の事件に関する声明は完全に嘘でした。

C2 adjective /ʌnˈtɛmpərd/

untempered

無調整

Meaning

not moderated or softened; lacking proper balance or control

Example

The untempered anger of the crowd caused chaos.

群衆の無調整な怒りが混乱を引き起こしました。

B2 verb /ˌʌndərˈmaɪn/

undermine

弱める

Meaning

to gradually weaken or damage something or someone

Example

Constant criticism can undermine a child's confidence.

継続的な批判は子どもの自信を弱める可能性があります。

C1 adjective /ˌʌnfɔːrˈsiːn/

unforeseen

Meaning

Not anticipated or predicted; unexpected.

Example

The project faced unforeseen challenges that delayed its completion.

B1 adjective /ʌnˈnesəseri/

Unnecessary

不必要な; 無駄な

Meaning

not needed; not required; pointless

Example

The meeting was unnecessary since all decisions were already made.

その会議は必要ありませんでした、すべての決定はすでに下されていました。

C2 adjective /ˌʌnpriːpəˈzɛsɪŋ/

unprepossessing

魅力的でない

Meaning

not attractive or appealing in appearance

Example

Despite his unprepossessing looks, he was very kind and intelligent.

彼は魅力的でない外見にもかかわらず、非常に親切で賢かった。

C1 adjective /ʌnˈkwes.tʃən.ə.bl̩/

Unquestionable

議論の余地がない; 確実な

Meaning

not able to be disputed or doubted; certain and beyond doubt

Example

Her honesty and integrity are unquestionable qualities.

彼女の誠実さと誠意は議論の余地がない特性です。

C1 adjective /ʌnˈkʌltʃəd/

Uncultured

無教養な; 教養のない

Meaning

lacking good manners, refinement, or education; uncivilized

Example

His uncultured behavior embarrassed everyone at the dinner party.

彼の無教養な行動はディナーパーティーでみんなを困らせた。

C2 verb /ʌnˈfrɒk/

unfrock

神父の職を剥奪する

Meaning

To remove a priest from his position or deprive someone of a rank.

Example

The corrupt priest was unfrocked after the investigation.

腐敗した神父は調査後に職を剥奪されました。

B2 adverb /ˈʌt.ə.li/

Utterly

完全に; 絶対に; 完全に

Meaning

completely; absolutely; totally

Example

The movie was utterly boring and I fell asleep.

その映画は完全に退屈で、私は寝てしまいました。

C2 noun /juːˌtɪlɪˈtɛəriənɪzəm/

utilitarianism

功利主義

Meaning

The ethical theory that actions are right if they are useful or for the benefit of the majority.

Example

Utilitarianism suggests that we should act to maximize overall happiness.

功利主義は、私たちが全体的な幸福を最大化するために行動すべきだと示唆しています。

C1 verb /ˌʌndərˈvæljuː/

undervalue

過小評価する

Meaning

To assign too low a value or importance to something or someone.

Example

She felt that her boss consistently undervalued her contributions.

彼女は自分の上司が彼女の貢献を一貫して過小評価していると感じていた。

B1 adjective /juːˈnaɪtɪd/

United

団結した; 一緒に; 同意した

Meaning

joined together for a common purpose; in agreement

Example

The team was united in their goal to win.

チームは勝利を目指して団結していた。

B1 adjective /ˌʌnˈpeɪd/

Unpaid

無給の; 支払いなし

Meaning

not paid for; without payment or salary

Example

She worked as an unpaid intern for six months.

彼女は無給のインターンとして6ヶ月間働きました。

B2 verb /ʌnˈkʌvə(r)/

uncover

明らかにする

Meaning

to reveal something that was hidden or secret

Example

The investigation uncovered new evidence.

調査で新しい証拠が明らかになった。

C1 noun ˈʌp.raɪ.zɪŋ

uprising

反乱

Meaning

An act of resistance or rebellion; a revolt against an authority or government.

Example

The uprising marked the beginning of the revolution.

反乱は革命の始まりを示しました。

B2 adjective /ˌʌnkənˈvɪnsɪŋ/

Unconvincing

信じられない

Meaning

failing to persuade or impress; not believable or credible

Example

His excuse for being late was completely unconvincing.

彼の遅刻の言い訳は完全に信じられなかった。

C1 adjective /ˌʌnəˈfɛktɪd/

unaffected

無影響な, 自然な

Meaning

Not influenced or touched by something; genuine and natural.

Example

He remained unaffected by the criticism and kept working hard.

彼は批判に動じることなく、懸命に働き続けました。

C1 adjective /ʌnˈsəʊʃəbl/

unsociable

非社交的な

Meaning

not enjoying the company of others; avoiding social interaction

Example

He became unsociable after moving to a new city.

新しい街に引っ越してから、彼は非社交的になった。

C2 adjective /ʌnˈflɛdʒd/

unfledged

未熟な

Meaning

Inexperienced, immature, or not fully developed.

Example

The unfledged writer struggled to complete his first novel.

未熟な作家は、最初の小説を完成させるのに苦労しました。

C1 adjective /ʌnˈspiːkəbl/

unspeakable

言葉では表現できない

Meaning

too bad or shocking to be expressed in words

Example

The survivors endured unspeakable horrors during the war.

生存者は戦争中に言葉では表現できない恐怖に耐えました。

C2 adjective /ʌnˈspɛərɪŋ/

unsparing

容赦ない

Meaning

Showing no mercy or generosity; harsh or severe.

Example

The critic was unsparing in his review of the play.

批評家は彼の演劇レビューで容赦なかった。

B2 adjective /ˌʌnˈnoʊ.tɪst/

Unnoticed

気づかれなかった; 無視された

Meaning

not seen or observed; ignored

Example

His hard work went unnoticed by his manager.

彼の努力はマネージャーに気づかれませんでした。

B2 adverb /ˈɜːrdʒəntli/

urgently

緊急に

Meaning

in a way that requires immediate attention or action

Example

The patient urgently needs medical attention.

患者は緊急に医療処置が必要です。

C1 adjective ʌnɪnˈhæbɪtəbəl

uninhabitable

住めない

Meaning

Not suitable or safe for people to live in.

Example

Rapid urbanization can make cities uninhabitable.

急速な都市化は都市を住めない場所にする可能性があります。

C2 adjective /ˈʌndjʊleɪtɪŋ/

undulating

波打つ

Meaning

Having a smoothly rising and falling form or motion like waves.

Example

We drove through undulating hills.

私たちは起伏のある丘をドライブしました。

B2 adverb /ʌnˈkɒnʃəsli/

unconsciously

無意識に

Meaning

without being aware of one's actions or surroundings

Example

She unconsciously tapped her foot to the rhythm of the music.

彼女は無意識に音楽のリズムに合わせて足をトントンしていた。

B2 adjective /ʌnˈhɜːd/

Unheard

聞かれなかった; 未知の

Meaning

not heard or listened to; not given a hearing; unknown or unfamiliar

Example

His complaints went unheard by the management.

彼の苦情は経営陣に無視されました。

C1 noun /ʌnˈfeɪθfʊlnəs/

unfaithfulness

不貞

Meaning

the quality of being disloyal or not faithful; breach of trust or fidelity

Example

His unfaithfulness led to the end of their marriage.

彼の不貞は結婚の終わりをもたらした。

B2 adjective /ʌnˈendɪŋ/

Unending

終わりのない

Meaning

continuing forever; without end

Example

The unending rain made the day feel gloomy.

終わりのない雨が一日を憂鬱にした。

C2 noun /ˌjuːzɜːrˈpeɪʃən/

usurpation

横領

Meaning

The act of taking someone's power or property illegally or by force.

Example

The general's usurpation of the presidency led to political unrest.

将軍の大統領職の横領は政治的混乱を引き起こした。

C1 adjective ʌnˈskruːpjʊləs

unscrupulous

不道徳な

Meaning

Having or showing no moral principles; not honest or fair.

Example

Unscrupulous peers can lead adolescents to delinquency.

不道徳な仲間は、若者を犯罪に導くことがあります。

C2 adjective /ʌnˈmɪtɪɡeɪtɪd/

unmitigated

完全な

Meaning

absolute; not lessened or moderated

Example

The meeting was an unmitigated disaster.

会議は完全な災害でした。

C1 adjective /ʌnˈmɒdɪfaɪd/

unmodified

未変更の

Meaning

not changed from its original form or state

Example

The data was used in its unmodified form for analysis.

データは未変更の形で分析に使用された。

C1 noun /ˈʌlsər/

ulcer

Meaning

a sore on the skin or a mucous membrane that does not heal easily

Example

The doctor prescribed medicine to treat the stomach ulcer.

C1 adjective /ˌʌndərˈsaɪzd/

undersized

小さすぎる

Meaning

Smaller than the usual or expected size.

Example

The undersized puppy struggled to keep up with its siblings.

小さすぎる子犬は、兄弟姉妹と一緒に歩くのに苦労しました。

B2 adjective /ʌnˈsiːn/

Unseen

見えない; 前に見たり気づいたりしたことがない

Meaning

not previously seen or noticed; invisible; hidden

Example

The unseen forces of nature can be very powerful.

自然界の見えない力は非常に強力である可能性があります。

C1 adjective /ˌʌnkɒnstɪˈtuːʃənəl/

Unconstitutional

違憲の

Meaning

not in accordance with a political constitution; violating constitutional principles

Example

The court declared the new law unconstitutional.

裁判所は新しい法律が違憲であると宣言しました。

B1 adjective /ʌnˈjuː.ʒu.əl/

Unusual

異常な; 奇妙な;

Meaning

not typical; strange; different from what is normal

Example

She wore an unusual dress to the party.

彼女はパーティーに異常なドレスを着ていた。

A2 noun /ˈjuːnɪt/

unit

ユニット

Meaning

an individual thing or person regarded as a single and complete entity

Example

Each unit in the production line is carefully tested.

生産ラインの各ユニットは慎重にテストされます。

A1 preposition /ˈʌndər/

under

下

Meaning

in or to a lower position than something

Example

The cat is under the table.

猫はテーブルの下にいます。

C2 noun /ˈʌndərlɪŋ/

underling

部下

Meaning

a person of low rank or importance; a subordinate

Example

The manager ordered his underlings to finish the task quickly.

マネージャーは部下に仕事を迅速に終わらせるよう命じました。

C2 adjective /ʌnˈtræməld/

untrammeled

制限のない自由

Meaning

Not restricted or hampered; free and unrestricted.

Example

She enjoyed untrammeled freedom in her new life abroad.

彼女は海外での新しい生活で制限のない自由を楽しんでいた。

C2 verb /ˈʌndərˌraɪt/

underwrite

Meaning

To guarantee financial support, especially by agreeing to cover losses or risks; in insurance, to assess and accept risks.

Example

The bank agreed to underwrite the company's new bond issue.

B1 adjective /ʌnˈʃʊr/

unsure

不確かな

Meaning

not certain or confident; feeling doubt

Example

She felt unsure about the decision.

彼女はその決定について不確かだった。

C1 adverb /ʌnˈnætʃrəli/

unnaturally

不自然に

Meaning

in a way that is not natural or normal; excessively or strangely

Example

He smiled unnaturally, making everyone feel uncomfortable.

彼は不自然に笑い、皆を居心地悪くさせた。

A1 verb /ˌʌndərˈstænd/

understand

理解する

Meaning

to know the meaning of something; to comprehend

Example

Do you understand the instructions?

指示が理解できますか?

C1 noun /ʌnkənˈsɜːrn/

Unconcern

無関心

Meaning

lack of worry or interest; indifference

Example

She showed complete unconcern about the criticism.

彼女は批評に対して完全に無関心を示しました。

C1 adjective /ˌʌnəkˈnɒlɪdʒd/

unacknowledged

認められない

Meaning

Not recognized, admitted, or accepted; ignored or unnoticed

Example

Her contributions to the project went unacknowledged.

彼女のプロジェクトへの貢献は認められなかった。

B2 adjective /ʌnˈiːzi/

Uneasy

不安な; 心配な; 落ち着かない

Meaning

worried; anxious; uncomfortable; restless

Example

She felt uneasy about walking alone at night.

彼女は夜一人で歩くことに不安を感じていた。

C2 adjective /ɜːrˈbeɪn/

urbane

洗練された

Meaning

showing polished manners, refinement, and sophistication

Example

He was an urbane gentleman who charmed everyone at the party.

彼はパーティーでみんなを魅了した洗練された紳士だった。

B2 adjective ʌnˈprɛsɪˌdɛntɪd

unprecedented

前例のない

Meaning

Never done or known before; without previous example.

Example

Unprecedented advancements in science changed human lives.

科学における前例のない進歩は人間の生活を変えました。

C2 verb /ʌpˈhiːv/

upheave

持ち上げる

Meaning

to lift or raise something forcefully; to cause to rise suddenly

Example

The workers had to upheave the heavy stone to clear the path.

作業員たちは道を清掃するために重い石を持ち上げなければならなかった。

C1 verb /ˌʌndərˈsɛl/

undersell

Meaning

to sell something at a lower price than competitors or to downplay the value of something

Example

The shop undersold its rivals by offering huge discounts.

B2 adjective /ʌnprɪˈpɛrd/

Unprepared

準備不足

Meaning

not ready or able to deal with something

Example

He was unprepared for the difficult exam.

彼は難しい試験に準備していなかった。

C1 adjective /ʌnˈtʃælɪndʒd/

Unchallenged

挑戦されていない; 反対なしに受け入れられた; ライバルなし

Meaning

not disputed or questioned; accepted without opposition; having no rival

Example

He remained the unchallenged champion for five years.

彼は5年間、挑戦されていないチャンピオンであり続けました。

B2 adjective /ˈʌt.moʊst/

Utmost

最大の; 極限

Meaning

greatest; most extreme; maximum possible

Example

She showed utmost care while handling the fragile items.

彼女は壊れやすいアイテムを扱うとき、最大の配慮を示しました。

B2 adjective /ʌnˈsteɪbəl/

Unstable

不安定

Meaning

likely to change; not steady or secure; unsteady

Example

The unstable economy made people worried about their jobs.

不安定な経済は、人々を自分たちの仕事について心配させました。

A2 noun /ʌmˈbrɛlə/

umbrella

傘

Meaning

A device used for protection against rain or sun, typically consisting of a collapsible canopy mounted on a central rod.

Example

She opened her umbrella as it started to rain.

雨が降り始めたので、彼女は傘を開いた。

B2 adjective /ʌnˈbreɪkəbəl/

Unbreakable

壊れたり損傷したりできない; とても強くて耐久性がある

Meaning

not able to be broken or damaged; very strong and durable

Example

Their friendship formed an unbreakable bond.

彼らの友情は壊れない絆を形成しました。

B1 adverb /ʌnˈjuːʒuəli/

unusually

異常に

Meaning

in a way that is not typical or expected; to an uncommon degree

Example

It was unusually cold for this time of year.

この時期にしては異常に寒かった。