unfaltering
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C1 adjective /ʌnˈfɔːltərɪŋ/

unfaltering

不屈不挠
Meaning
Steady and resolute; not weakening or hesitating
Example
She continued with unfaltering determination.
彼女は不屈不挠の決意で続けた。
C1 noun /ˈprɒmɪnəns/

prominence

名声
Meaning
The state of being important, famous, or easily noticed.
Example
Her work gained prominence after the award.
彼女の仕事は賞を受けた後、名声を得ました。
C1 noun/adjective /ˈmɪriəd/

myriad

無数
Meaning
a countless or extremely great number
Example
There are myriad stars in the night sky.
夜空には無数の星がある。
C1 noun ˌkɒm.pjʊˈteɪ.ʃən

computation

計算
Meaning
The action of mathematical calculation.
Example
Complex computation is required for AI models.
AIモデルには複雑な計算が必要です。
C1 noun /əˈnɒməli/

anomaly

異常
Meaning
something that deviates from the norm or expected result
Example
The sudden drop in temperature was considered an anomaly.
温度の急激な低下は異常と見なされました。
C1 noun ˌprɒf.ɪ.təˈbɪl.ɪ.ti

profitability

収益性
Meaning
The degree to which a business or activity yields profit or financial gain.
Example
Increasing sales and reducing costs boosted profitability.
販売の増加とコスト削減により収益性が向上しました。
C1 noun /kənˈfɔːrmɪst/

conformist

コンフォーミスト
Meaning
A person who uncritically conforms to established practices or standards.
Example
She was labeled a conformist for always following the crowd.
彼女はいつも人々に従っていたため、コンフォーミストとレッテルを貼られた。
C1 adjective /ˈflæʃi/

flashy

派手な, 目立つ
Meaning
ostentatious or showy in a way that attracts attention
Example
He drove a flashy sports car through the city streets.
彼は市街地を派手なスポーツカーで走った。
C1 noun dɪˈspær.ə.ti

disparity

格差
Meaning
A great difference or inequality.
Example
Disparity between countries must be reduced.
国々の間の格差は減少するべきです。
C1 noun /ˈkænən/

canon

規範
Meaning
A general law, rule, principle, or collection of sacred books accepted as genuine.
Example
The book is now considered part of the literary canon.
その本は現在、文学の規範の一部と見なされています。
C1 verb /diːˈkoʊd/

decode

Meaning
to convert a coded message into a readable form; to interpret meaning
Example
The software can decode the hidden message within seconds.
C1 noun /məˈrɑːl/

Morale

士気; 精神
Meaning
the confidence, enthusiasm, and discipline of a person or group
Example
The team's morale improved after the victory.
チームの士気は勝利後に改善された。
C1 noun /ˈbɔɪənsi/ or /ˈbuːjənsi/

buoyancy

浮力, 快活
Meaning
The ability to float in a liquid; cheerfulness and optimism.
Example
Her natural buoyancy lifted the mood of the group.
彼女の自然な快活さがグループの雰囲気を高めた。
C1 noun /teɪnt/

Taint

汚点; マーク; 腐敗または汚染
Meaning
a stain or mark that spoils something; corruption or contamination
Example
The scandal left a permanent taint on his reputation.
スキャンダルは彼の評判に永続的な汚点を残しました。
C1 verb /dʒæb/

jab

Meaning
To poke or thrust quickly, often with a finger or something pointed.
Example
He jabbed his finger at the map to show the location.
C1 noun /kwɜːrk/

Quirk

癖; 特徴
Meaning
a peculiar behavioral habit; an unexpected turn or twist
Example
Her quirk of always wearing mismatched socks made her unique.
彼女のいつもミスマッチな靴下を履くクセが、彼女をユニークにした。
C1 verb /ˈæn.ɛks/

annex

併合する
Meaning
To take control of a territory and add it to one's own.
Example
The empire annexed the neighboring kingdom after the war.
帝国は戦争後、隣国を併合した。
C1 adjective /ˌɪmprɪˈsaɪs/

imprecise

不正確
Meaning
Not exact or accurate; vague.
Example
His explanation was too imprecise to be helpful.
彼の説明はあまりにも不正確で役に立たなかった。
C1 noun /fɪˈziːk/

physique

体格
Meaning
the form, size, and development of a person's body
Example
He has an athletic physique due to years of training.
彼は長年のトレーニングでアスリートのような体格を持っています。
C1 noun /ˈnɒs.trɪl/

Nostril

鼻孔
Meaning
either of the two openings in the nose through which air passes
Example
The doctor checked each nostril for any blockage.
医師は鼻孔のそれぞれをブロックがないか調べました。
C1 noun /veɪl/

vale

谷
Meaning
A valley, often used in a poetic or literary sense.
Example
The village lay hidden in a quiet green vale.
村は静かな緑の谷に隠れていました。
C1 adjective /ˈɡreɪsləs/

graceless

無作法
Meaning
Lacking elegance, charm, or social refinement.
Example
His graceless behavior embarrassed everyone at the party.
彼の無作法な行動はパーティーでみんなを困らせた。
C1 noun /luːm/

Loom

織機
Meaning
a machine for weaving cloth; to appear threatening or menacing
Example
The weaver worked at the loom to create beautiful fabrics.
織工は美しい布地を作るために機織り機で働いていました。
C1 verb/noun /skaʊl/

scowl

しかめっ面をする
Meaning
To frown in an angry or bad-tempered way.
Example
She scowled when she heard the unfair remark.
彼女は不公平なコメントを聞いてしかめっ面をした。
C1 adjective ˌhaɪ.pəˈθet.ɪ.kəl

hypothetical

仮定的, 想定的, 理論的
Meaning
Based on or serving as a hypothesis; supposed but not necessarily real or true.
Example
The discussion was based on hypothetical scenarios.
議論は仮定的なシナリオに基づいていました。
C1 noun /dɪˈvaɪzər/

divisor

除数
Meaning
A number by which another number is divided.
Example
In the equation 12 ÷ 3, the number 3 is the divisor.
方程式12 ÷ 3では、数字3が除数です。
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 /ˈsɒljʊbəl/

soluble

可溶性
Meaning
able to be dissolved, especially in water
Example
Sugar is soluble in water.
砂糖は水に溶けやすい。
C1 noun /ˈɪnflʌks/

influx

流入
Meaning
A large arrival or flow of people or things.
Example
The city experienced an influx of tourists during the festival.
その都市は祭りの期間中に観光客の流入を経験しました。
C1 noun ˈlaɪv.li.hʊd

livelihood

生計
Meaning
A means of securing the necessities of life; a way of making a living.
Example
Fishing is the primary livelihood of coastal communities.
漁業は沿岸地域の主な生計手段です。
C1 adjective /ɪnˈstɪŋk.tɪv/

instinctive

本能的, 自然な, 自動的
Meaning
Based on instinct; done without conscious thought; natural and automatic.
Example
His instinctive reaction saved his life.
彼の本能的な反応は彼の命を救った。
C1 noun /ˈəʊ.nəs/

onus

責任
Meaning
A duty or responsibility, especially a heavy one.
Example
The onus is on the government to provide relief to the victims.
犠牲者に支援を提供する責任は政府にあります。
C1 noun /dɪˈfjuːʒən/

diffusion

Meaning
the spreading of something more widely or the movement of particles from high to low concentration
Example
The diffusion of information on social media is rapid.
C1 adjective /pəˈrɪʒən/

parisian

パリに関連する
Meaning
relating to Paris or its people
Example
She wore a Parisian style dress at the party.
彼女はパリジャンスタイルのドレスをパーティーで着ていた。
C1 verb /ˌriːˈvæmp/

revamp

改装
Meaning
To give a new and improved form, structure, or appearance to something.
Example
The company decided to revamp its website for a modern look.
その企業は、モダンな外観のためにウェブサイトをリヴァンプすることを決定しました。
C1 verb /ˈɛkstrɪkeɪt/

extricate

救出する
Meaning
To free someone or something from a constraint or difficulty.
Example
The firefighters extricated the passengers from the wrecked car.
消防士たちは事故車から乗客を救出しました。
C1 adjective /ˈbleɪmləs/

blameless

非の打ち所がない
Meaning
innocent of wrongdoing; not deserving blame
Example
She remained calm and blameless throughout the investigation.
彼女は調査中ずっと冷静で非の打ち所がなかった。
C1 noun /ˌəʊvərɪksˌplɔɪˈteɪʃən/

overexploitation

過剰搾取
Meaning
The unsustainable use of natural resources at a rate that exceeds their ability to regenerate, leading to depletion and environmental degradation.
Example
Overexploitation of natural resources leads to environmental degradation.
自然資源の過剰搾取は環境の悪化を引き起こします。
C1 verb /dɪˈstɪl/

distill

Meaning
To purify a liquid by heating and cooling; to extract the essential meaning or most important aspects.
Example
The factory distills water to make it safe for drinking.
C1 adjective dɪsˈfʌŋkʃənl

dysfunctional

機能不全の
Meaning
Not operating normally or properly.
Example
The dysfunctional system led to numerous delays and errors.
機能不全のシステムは多くの遅延とエラーを引き起こしました。
C1 noun dɪˌzɝː.t̬ə.fɪˈkeɪ.ʃən

desertification

砂漠化
Meaning
The process by which fertile land becomes desert, typically as a result of drought, deforestation, or inappropriate agriculture.
Example
Deforestation accelerates desertification.
森林伐採は砂漠化を加速させます。
C1 adjective /dɪˈraɪsɪv/

derisive

軽蔑的な
Meaning
Expressing contempt or ridicule.
Example
She gave a derisive laugh at his attempt to sing.
彼女は彼の歌おうとする試みに対して軽蔑的な笑い声を上げた。
C1 noun /ˈaɪ.wɪt.nəs/

Eyewitness

目撃者
Meaning
a person who has seen something happen and can give evidence about it
Example
The police interviewed several eyewitnesses to the accident.
警察は事故の目撃者にインタビューを行いました。
C1 adjective /ˈpɔːrəs/

porous

多孔性の
Meaning
Having tiny holes that allow liquid or air to pass through.
Example
The soil is very porous and drains quickly.
土壌は非常に多孔性で、すぐに水を排出します。
C1 /ˈɡrævəl/

gravel

砂利
Meaning
Small stones and pebbles, often mixed with sand, used for paths, roads, and construction.
Example
The driveway was covered with gravel.
ドライブウェイは砂利で覆われていました。
C1 adjective ɪmˈpɪr.ɪ.kəl

empirical

経験に基づくまたは実証的
Meaning
Based on, concerned with, or verifiable by observation or experience rather than theory or pure logic.
Example
Scientific research relies on empirical evidence.
科学的な研究は実証的な証拠に依存しています。
C1 noun /ˈɪn.tə.lekt/

intellect

知能
Meaning
The ability to think, reason, and understand objectively.
Example
Her intellect is admired by all her colleagues.
彼女の知能はすべての同僚に賞賛されています。
C1 noun /ˈɪntərˌluːd/

interlude

間奏
Meaning
A short period of time that comes between two events; an interval.
Example
There was a brief musical interlude between the two acts of the play.
演劇の二つの幕の間に短い音楽の間奏がありました。
C1 verb /əbˈsɛs/

obsess

Meaning
To preoccupy or fill the mind of someone continually and to an excessive degree.
Example
She tends to obsess over small details.
C1 noun /taɪˈkuːn/

tycoon

大富豪
Meaning
a wealthy, powerful businessperson
Example
The real estate tycoon invested in several skyscrapers.
不動産の大富豪は複数の超高層ビルに投資しました。
C1 verb /mɑːr/

mar

台無しにする
Meaning
to spoil or damage the appearance or quality of something
Example
The scratch will mar the beauty of the painting.
その傷は絵画の美しさを台無しにする。
C1 noun /ˈɛksɜːrpt/

excerpt

抜粋
Meaning
A short portion taken from a text, film, or piece of music.
Example
The teacher read an excerpt from the novel.
先生は小説から一節を読みました。
C1 noun /kæpˈtɪv.ɪ.ti/

Captivity

監禁
Meaning
the condition of being imprisoned or confined
Example
After years of captivity, the prisoner was finally released.
長年の監禁の後、囚人は最終的に解放されました。
C1 verb /ɔːɡˈmɛnt/

augment

増加させる
Meaning
To increase or strengthen something.
Example
The company plans to augment its workforce.
会社は労働力を増加させる計画を立てています。
C1 noun /ˈæmplɪtjuːd/

amplitude

振幅
Meaning
the maximum extent of a vibration or oscillation, or the size of something
Example
The amplitude of the earthquake was measured on the Richter scale.
地震の振幅はリヒター・スケールで測定されました。
C1 adjective ˈbɜːdʒənɪŋ

burgeoning

急成長
Meaning
Beginning to grow or increase rapidly; flourishing.
Example
The burgeoning tech industry has attracted many investors.
急成長しているテクノロジー業界は、多くの投資家を引き付けました。
C1 noun /ˈmɒn.ə.təʊn/

monotone

単調な声
Meaning
A continuous sound, especially of a person's voice, that does not rise and fall in pitch.
Example
The teacher's monotone made the lecture hard to follow.
教師のモノトーンが講義を聞き取るのを難しくした。
C1 verb /ˈklæmbər/

clamber

力を入れて登る
Meaning
to climb with effort or difficulty, often using both hands and feet
Example
The children clambered over the rocks to reach the cave.
子供たちは洞窟に到達するために岩を登った。
C1 verb /dɪˈkraɪ/

decry

非難する
Meaning
to publicly criticize or express strong disapproval of something
Example
Many activists decry the destruction of the rainforest.
多くの活動家が熱帯雨林の破壊を非難しています。
C1 adjective /ˌɪndɪˈskriːt/

indiscreet

軽率
Meaning
Not careful in what one says or does, likely to reveal secrets or offend.
Example
It was indiscreet of him to mention the plan in public.
公衆の面前で計画について言及するのは軽率だった。
C1 noun /ˈkæn.ɪ.bəl/

Cannibal

人食い
Meaning
a person who eats the flesh of other human beings
Example
The explorer's journal described rumors of cannibals living on the remote island.
探検家の日記には、遠くの島で人食いが生きているという噂が書かれていました。
C1 noun /ˈleɪ.dəl/

Ladle

おたま
Meaning
a large deep spoon with a long handle, used for serving soup or other liquids
Example
Use the ladle to serve the hot soup into bowls.
熱いスープをボウルに注ぐためにおたまを使ってください。
C1 verb /pərˈtɜːrb/

perturb

動揺させる
Meaning
To disturb or unsettle greatly in mind.
Example
The sudden noise perturbed the students during the exam.
突然の音が試験中に学生を動揺させました。
C1 noun /ˈdʒʌɡ.lər/

Juggler

ジャグラー
Meaning
a person who skillfully throws and catches objects as entertainment
Example
The juggler entertained the crowd with his amazing ball tricks.
ジャグラーは彼の見事なボールさばきで観客を楽しませた。
C1 noun /ˈwɒrənt/

Warrant

捜索令状
Meaning
a legal document that gives police the authority to do something; justification or authority for an action
Example
The police obtained a search warrant before entering the building.
警察は建物に入る前に捜索令状を取得しました。
C1 noun ˈkəmˌpaʊndɪŋ

compounding

複利
Meaning
The process whereby interest is added to an amount of money and future interest is calculated on the total.
Example
Compounding interest increases the value of investments over time.
複利は時間が経過するにつれて投資の価値を増加させます。
C1 adjective /ˈsiː.naɪl/

senile

老化による弱さ
Meaning
Showing the weaknesses of old age, especially mental decline.
Example
The old man became senile and forgot familiar faces.
老人はセンイルになり、親しい顔を忘れてしまった。
C1 noun /ˈpɛndjələm/

pendulum

振り子
Meaning
A weight suspended from a pivot so that it swings freely, often used to regulate clocks.
Example
The pendulum swung back and forth inside the clock.
振り子は時計の中で前後に揺れていた。
C1 adjective /ˈbɒt.əl ɡriːn/

Bottle-green

ボトルグリーン
Meaning
a dark green color similar to that of a green glass bottle
Example
She wore a beautiful bottle-green dress to the evening party.
彼女は夜のパーティーに美しいボトルグリーンのドレスを着ていた。
C1 noun /ɪnˈɛk.wɪ.ti/

inequity

不平等
Meaning
Lack of fairness or justice; unequal distribution or treatment.
Example
Social inequity continues to be a global issue.
社会的不平等は依然としてグローバルな問題です。
C1 noun /aɪ/

aye

賛成
Meaning
an affirmative vote or expression of agreement
Example
The committee voted aye on the proposal.
委員会は提案に賛成票を投じました。
C1 noun /voʊɡ/

vogue

ファッション
Meaning
the prevailing fashion, style, or trend at a particular time
Example
Minimalist design is currently in vogue.
ミニマリストデザインは現在ファッションです。
C1 noun /əˈbɪs/

abyss

深淵
Meaning
a deep, immeasurable space, chasm, or void; something seemingly without end
Example
The climbers looked down into the dark abyss below.
登山者たちは下の暗い深淵を見下ろしました。
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 /pɑːrtʃt/

parched

極度に喉が渇いた
Meaning
extremely dry, especially because of heat or thirst
Example
After walking in the desert, he was parched with thirst.
砂漠を歩いた後、彼は極度に喉が渇いていた。
C1 verb /bɪˈhɛd/

behead

斬首する
Meaning
to cut off a person's or animal's head; to remove the leader or most important part
Example
The historical account describes how the traitor was beheaded as punishment.
歴史的記録は、罰として裏切り者が斬首された様子を描写している。
C1 noun /ˈɡraʊnd kruː/

ground crew

グラウンドクルー
Meaning
a team of people who maintain and service aircraft on the ground
Example
The ground crew prepared the plane for takeoff.
グラウンドクルーは飛行機を離陸の準備をしました。
C1 noun /ˈsʌtlti/

subtlety

微妙
Meaning
The quality or state of being subtle.
Example
She understood the subtlety of the situation.
彼女は状況の微妙さを理解しました。
C1 adjective /ˈpɛnɪtənt/

penitent

悔い改めた
Meaning
Feeling or showing sorrow and regret for having done wrong.
Example
She was penitent after shouting at her friend.
彼女は友達に叫んだ後、悔い改めていた。
C1 noun /ˈsɛntrɪˌfjuːdʒ/

centrifuge

遠心分離機
Meaning
A machine that spins substances at high speed to separate different components.
Example
The lab technician used a centrifuge to separate the blood cells from the plasma.
実験室の技術者は、血液細胞を血漿から分離するために遠心分離機を使用しました。
C1 adjective /ɪmˈpjʊər/

Impure

不純
Meaning
contaminated; not clean; mixed with foreign substances
Example
The impure water caused health problems in the village.
不純な水は村で健康問題を引き起こしました。
C1 adjective + noun ˈfeɪvərəbəl klaɪˈmætɪk kənˈdɪʃənz

favorable climatic conditions

好ましい気候条件
Meaning
Weather conditions that are suitable and beneficial for growth or development
Example
Winter offers favorable climatic conditions for farming.
冬は農業にとって好ましい気候条件を提供します。
C1 verb /bɒtʃ/

botch

失敗する
Meaning
to carry out a task badly or carelessly
Example
He completely botched the repair job.
彼は修理の仕事を完全に失敗させた。
C1 adjective /ˌɪntəˈrɑːɡətɪv/

interrogative

疑問の
Meaning
Relating to or conveying a question; in grammar, used to form questions.
Example
She raised an interrogative eyebrow when she heard the news.
彼女はそのニュースを聞いて疑問のまなざしを向けました。
C1 phrase lɪˈdʒɪt.ɪ.mət sɛlf dɪˈfens

legitimate self-defense

正当防衛
Meaning
Lawful protection of oneself from harm or attack.
Example
The country claimed it was legitimate self-defense.
その国は正当防衛であると主張しました。
C1 verb /sʌlk/

sulk

むくれる
Meaning
to be silent and bad-tempered because you are angry or disappointed
Example
She sulked in her room after the argument.
議論の後、彼女は自分の部屋でむくれていた。
C1 adjective/noun /ˈsʌkjələnt/

succulent

ジューシーな
Meaning
Juicy or full of juice; also refers to a plant with thick, fleshy leaves adapted to storing water.
Example
The steak was so succulent that everyone enjoyed it.
ステーキはとてもジューシーで、皆が楽しんで食べました。
C1 noun /ˈplɛθərə/

plethora

過剰な量
Meaning
an excessive amount of something
Example
She has a plethora of books on her shelf.
彼女の棚には過剰な量の本があります。
C1 noun /ˈnɑːrsɪsɪst/

narcissist

ナルシシスト
Meaning
A person who has an excessive interest in or admiration of themselves.
Example
Everyone avoided him because he was a narcissist.
みんな彼を避けていた、なぜなら彼はナルシシストだったから。
C1 noun /ˈbɑːr.tər ˌsɪs.təm/

barter system

物々交換システム
Meaning
A system of exchange where goods and services are traded directly without using money.
Example
Ancient civilizations used the barter system for trade.
古代の文明は貿易のために物々交換システムを使用していました。
C1 adjective /ˈbæʃ.fəl/

Bashful

恥ずかしがり屋; 内気な; 控えめな; 簡単に恥ずかしくなる
Meaning
shy; timid; modest; easily embarrassed
Example
The bashful child hid behind her mother when meeting strangers.
その恥ずかしがり屋の子供は、見知らぬ人と会うときに母親の後ろに隠れました。
C1 noun /ˈbjuːɡəl/

Bugle

バグル
Meaning
a brass musical instrument similar to a trumpet but without valves, used especially for military calls
Example
The soldier played the bugle to signal the start of the ceremony.
兵士は式典の開始を合図するためにバグルを吹いた
C1 noun /ˈfɒdər/

fodder

飼料
Meaning
food for livestock such as cattle, horses, or sheep; also something considered of little value but used to supply a demand
Example
The farmer stored enough fodder for the cattle to last through winter.
農家は家畜が冬を越せるように十分な飼料を貯めておいた。
C1 adjective /ʌnˈkɛmpt/

unkempt

だらしない
Meaning
Having an untidy or disheveled appearance.
Example
He looked unkempt after sleeping outdoors all night.
彼は一晩外で寝た後、だらしなく見えた。
C1 noun /faɪˈnælɪti/

finality

決定的な性質
Meaning
the quality of being final or irreversible; a sense of conclusiveness
Example
The judge's decision gave the case a sense of finality.
裁判官の決定はその事件に決定的な感覚を与えた。
C1 adjective /riˈækʃəˌneri/

reactionary

反動的
Meaning
Opposing political or social progress or reform; extremely conservative.
Example
The group took a reactionary stance against the new policies.
グループは新しい政策に対して反動的な立場を取った。
C1 verb /ˈkʌn.dʒər/

conjure

召喚する
Meaning
to summon something as if by magic; to imagine vividly
Example
The magician conjured a rabbit out of the hat.
魔法使いは帽子からウサギを召喚しました。
C1 noun /mɔːrɡ/

morgue

Meaning
a place where dead bodies are kept, especially to be identified or claimed
Example
The police took the body to the morgue for identification.
C1 adjective /ˈpɔɪ.njənt/

poignant

胸を打つ, 感動的
Meaning
evoking a keen sense of sadness or regret; deeply touching
Example
The movie's ending was so poignant that many in the audience were moved to tears.
映画のラストシーンは非常に感動的で、多くの観客が涙を流しました。
C1 noun /ˌænθrəˈpɒlədʒɪst/

anthropologist

人類学者
Meaning
a person who studies human societies, cultures, and their development
Example
The anthropologist spent years studying the tribal community.
人類学者は部族コミュニティを研究するのに何年も費やしました。
C1 noun sælˈveɪʃən

salvation

救済
Meaning
Deliverance from sin and its consequences, believed by Christians to be brought about by faith in Christ.
Example
The story revolves around the theme of salvation.
物語は救いのテーマを中心に展開します。
C1 adjective /tɛkˈtɑː.nɪk/

tectonic

構造的
Meaning
Relating to the structure of the earth's crust and the large-scale processes that take place within it.
Example
Tectonic movements cause earthquakes and mountain formation.
テクトニック運動は地震や山の形成を引き起こします。
C1 adjective /ʌnˈkwaɪ.ət/

Unquiet

落ち着かない; 不安な; 動揺した
Meaning
restless; unable to remain still or quiet; anxious or troubled
Example
She spent an unquiet night worrying about the exam results.
彼女は試験結果を心配して落ち着かない夜を過ごした。
C1 noun /krɛst/

crest

頂上
Meaning
the top of a hill, wave, or mountain; a symbol of identity
Example
The hikers reached the crest of the mountain at sunrise.
ハイカーたちは日の出時に山頂に到達しました。
C1 verb /əˈskraɪb/

ascribe

帰属する、割り当てる
Meaning
To attribute something to a cause, source, or person.
Example
Many scholars ascribe the poem to an unknown author.
多くの学者はこの詩を未知の作者に帰属させている。
C1 verb /ænˈtæɡənaɪz/

antagonize

挑発する
Meaning
to cause someone to become hostile or angry; to provoke opposition
Example
His rude remarks only served to antagonize his colleagues.
彼の失礼な言葉は彼の同僚をアンタゴナイズすることにしかならなかった。
C1 noun /ˈɛpɪˌlɔːɡ/

epilogue

エピローグ
Meaning
A section at the end of a book, play, or speech that serves as a conclusion.
Example
The author included an epilogue to explain what happened to the characters later.
著者は登場人物たちのその後について説明するためにエピローグを追加しました。
C1 adjective /dɪˈsɜːrnɪŋ/

discerning

鋭い
Meaning
having good judgment or insight; able to distinguish well
Example
He is a discerning reader who notices subtle details.
彼は鋭い読者で、微細な詳細に気づきます。
C1 noun /ˈɔr.ə.kəl/

Oracle

オラクル
Meaning
a person regarded as a source of wise counsel; in ancient times, a priest or priestess acting as a medium
Example
The ancient Greeks consulted the oracle at Delphi.
古代ギリシャ人はデルポイのオラクルに相談しました。
C1 adjective /ɪnˈtjuː.ɪ.tɪv/

intuitive

直感的
Meaning
Based on instinctive understanding rather than reasoning.
Example
The software has an intuitive design that makes it easy to use.
そのソフトウェアは直感的なデザインを持っており、使いやすいです。
C1 adjective /ˈʃeɪp.ləs/

Shapeless

形のない
Meaning
having no definite or well-defined shape or form
Example
The fog created a shapeless mass in the distance.
霧は遠くに形のない塊を作り出しました。
C1 adjective /səˈnɔːrəs/

sonorous

深い音
Meaning
Deep, full, and rich in sound.
Example
The actor's sonorous voice filled the entire theater.
俳優のソノラスな声が劇場全体に響き渡った。
C1 noun /ˌræʃəˈnæl/

rationale

根本的な理由
Meaning
the underlying reason or explanation for something
Example
The rationale behind his decision was clearly explained.
彼の決断の背後にある理由は明確に説明されました。
C1 adjective /taɪˈtænɪk/

titanic

巨大な
Meaning
Of exceptional strength, size, or power.
Example
The company made titanic efforts to expand into new markets.
その会社は新しい市場に進出するために巨大な努力をしました。
C1 noun /ˌrɛspɪˈreɪʃən/

respiration

Meaning
The process of breathing or the exchange of gases in living organisms.
Example
Respiration is essential for all living beings.
C1 adjective /ˈbaʊn.tɪ.fəl/

bountiful

豊富な / 寛大な
Meaning
Large in quantity; abundant; generous in giving.
Example
The farmer was grateful for the bountiful harvest.
農家は豊富な収穫に感謝していた。
C1 adjective /ˈdraʊ.zi/

Drowsy

眠い; 疲れた; 無気力な
Meaning
feeling sleepy and lethargic; half asleep; tired
Example
I felt drowsy after the heavy meal.
重い食事の後、眠気を感じました。
C1 verb /θrɒb/

throb

脈打つ
Meaning
to beat or pulse strongly, often with pain
Example
His head began to throb after the long day.
長い一日の後、彼の頭が脈打ち始めた。
C1 noun /sɛˈseɪʃən/

cessation

停止
Meaning
The fact or process of ending or being brought to an end.
Example
There was a temporary cessation of hostilities.
敵対行為は一時的に停止しました。
C1 noun

Longitude

経度
C1 adjective /dɪˈfaɪənt/

Defiant

反抗的な; 逆らう
Meaning
boldly resistant or challenging; disobedient
Example
The defiant student refused to follow the rules.
その反抗的な学生はルールに従うことを拒否しました。