obtrusive
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C2 adjective /əbˈtruːsɪv/

obtrusive

目障りな
Meaning
noticeable in an unpleasant or unwelcome way; intrusive
Example
The advertisement was so obtrusive that it ruined the user’s experience.
その広告はあまりにも目立ちすぎて、ユーザーの体験を台無しにしました。
C2 adjective /prəˈtuːbərənt/

protuberant

突出または膨らんだ
Meaning
Sticking out or bulging.
Example
His protuberant belly showed after the meal.
食事の後、彼の膨らんだ腹が見えた。
C2 noun /ˈprɒm.ən.tɔːr.i/

promontory

岬
Meaning
A high point of land or rock projecting into a body of water.
Example
The lighthouse stood on a promontory overlooking the sea.
灯台は海を見渡す岬の上に立っていた。
C2 adjective /ˌpɛstɪˈlɛnʃəl/

pestilential

疫病の
Meaning
Relating to or causing pestilence; very harmful, troublesome, or dangerous.
Example
The pestilential smell of the garbage filled the street.
ゴミのペスティレンシャルな匂いが通りを満たした。
C2 noun /əˈluːviən/

alluvion

アリュビオン
Meaning
The gradual increase of land by the deposit of soil from water; also, a flood or overflow of water.
Example
The river’s alluvion added new fertile land to the village fields.
川のアリュビオンは村の畑に新しい肥沃な土地を加えました。
C2 verb /ˈɡɑːɡəl/

goggle

目を見開いて見る
Meaning
to stare with wide open eyes, often in surprise or wonder
Example
The tourists goggled at the tall skyscrapers.
観光客は高い摩天楼を驚きながら見つめていた。
C2 noun /ˈmeɪleɪ/

melee

騒乱の戦い
Meaning
A noisy, confused fight or crowd situation.
Example
A melee broke out during the football match.
サッカーの試合中に騒乱の戦いが起きました。
C2 verb /ˈæmbl/

amble

ゆっくり歩く
Meaning
To walk at a slow, relaxed pace.
Example
They amble through the park on Sunday mornings.
彼らは日曜日の朝に公園をゆっくり歩いています。
C2 noun /əˈpɒstəsi/

apostasy

背教
Meaning
The abandonment or renunciation of a religious or political belief.
Example
His public apostasy shocked his followers.
彼の公然の背教は彼の支持者を驚かせました。
C2 adjective /ˌsɪkəˈfæntɪk/

sycophantic

お世辞
Meaning
Behaving in a way that is excessively obedient or servile to gain favor.
Example
His sycophantic behavior annoyed his colleagues.
彼のお世辞な振る舞いは同僚をうんざりさせた。
C2 noun /ˌdɪsəˈvaʊəl/

disavowal

拒否
Meaning
the denial of any responsibility, connection, or support
Example
The politician issued a firm disavowal of the controversial remarks.
その政治家は物議を醸す発言に対して強い拒否を表明した。
C2 noun /ˈhɛʃ.ən/

Hessian

ジュート布
Meaning
a strong coarse fabric made from jute or hemp, used for sacks and wrapping
Example
The farmer stored grain in hessian sacks.
農家はジュート布袋に穀物を保管していました。
C2 adjective /dɪsˈdʒʌŋktɪv/

disjunctive

選択的
Meaning
Serving to separate or divide; expressing a choice between alternatives.
Example
In grammar, 'or' is a disjunctive conjunction.
文法では、'または' は選択的接続詞です。
C2 adjective /ʌnˈwəʊntɪd/

unwonted

異常
Meaning
Unusual, uncommon, or out of the ordinary.
Example
She spoke with an unwonted gentleness that surprised everyone.
彼女は予想外の優しさで話し、皆を驚かせました。
C2 /ˈpæn.ə.pli/

panoply

全装備
Meaning
A complete or impressive collection of things; a full set of armor.
Example
The museum displayed a panoply of ancient weapons.
博物館は古代の武器の全装備を展示しました。
C2 adjective /ˈvɛntrəl/

ventral

腹側の
Meaning
relating to the underside or abdominal part of an animal or organ
Example
The fish has a white ventral surface.
その魚は白い腹側の表面を持っています。
C2 noun /ˈʃɪbəˌlɛθ/

shibboleth

特定のグループを識別するための表現や信念
Meaning
A custom, phrase, or belief distinguishing a particular group of people, often used to identify outsiders.
Example
The phrase became a political shibboleth during the campaign.
そのフレーズはキャンペーン中に政治的なシボレスとなった。
C2 noun /traɪˈʌmvɪrət/

triumvirate

三頭政治
Meaning
A political regime ruled or dominated by three powerful individuals.
Example
The Roman Republic was once governed by a triumvirate.
ローマ共和政はかつて三頭政治によって統治されていました。
C2 noun /ˌɪmprɪˈkeɪʃən/

imprecation

呪い
Meaning
A spoken curse or expression of strong condemnation.
Example
The angry crowd hurled imprecations at the corrupt official.
怒った群衆は腐敗した役人に呪いを投げかけた。
C2 noun /ˈhʌvəl/

hovel

Meaning
a small, poorly built, and dirty house
Example
The refugees lived in a makeshift hovel.
C2 adjective /ˈmʌɡi/

muggy

蒸し暑くて湿気のある
Meaning
uncomfortably warm and humid
Example
It was a muggy afternoon in July.
7月の午後は蒸し暑かった。
C2 noun /ˌɛfləˈrɛsəns/

efflorescence

開花
Meaning
the process of flowering or reaching an optimal stage of development
Example
The garden was at the peak of its efflorescence in spring.
庭は春にその開花のピークに達していました。
C2 noun /dɪˈprævɪti/

depravity

堕落
Meaning
moral corruption; wickedness
Example
The film portrays the moral depravity of a corrupt society.
その映画は腐敗した社会の道徳的堕落を描いています。
C2 verb /ˈkɔː.tə.raɪz/

cauterize

焼灼する
Meaning
to burn tissue to stop bleeding or prevent infection
Example
The doctor cauterized the wound to stop the bleeding.
医者は出血を止めるために傷を焼灼した。
C2 noun /ˌdaɪəˈlɛktɪk/

dialectic

Meaning
A method of argument or reasoning by dialogue, especially as a means of investigating truth.
Example
The philosopher used dialectic to challenge his students' assumptions.
C2 adjective /rɪˈmɪs/

remiss

怠慢
Meaning
Negligent in performing a duty or responsibility.
Example
The manager was remiss in not checking the financial reports carefully.
マネージャーは財務報告書を慎重に確認しなかったことで怠慢だった。
C2 adjective /ˈbrætɪʃ/

brattish

わがまま
Meaning
acting like a spoiled child; behaving in an annoying, self-centered way
Example
The brattish boy threw a tantrum when he didn’t get his toy.
わがままな男の子は、おもちゃがもらえなかったときに駄々をこねました。
C2 adjective ˌmɛɡəˈlɪθɪk

megalithic

巨石
Meaning
Relating to or denoting prehistoric monuments made of or containing large stones.
Example
The megalithic structures in ancient civilizations are fascinating.
古代文明の巨石構造物は魅力的です。
C2 adjective /ˈek.wə.bəl/

Equable

冷静
Meaning
calm and even-tempered; not easily disturbed
Example
He maintained an equable temperament throughout the crisis.
彼は危機の間、冷静な気質を保ち続けた。
C2 verb /ˈdʌv.teɪl/

dovetail

完全に合致する
Meaning
to fit or combine perfectly together
Example
Her plans dovetail perfectly with our goals.
彼女の計画は私たちの目標に完全に合致しています。
C2 noun /prɪˈzɛntmənt/

presentment

正式な提示
Meaning
The act of presenting something formally or officially; a formal statement or document.
Example
The lawyer made a presentment of the evidence to the court.
弁護士は証拠を法廷に提示しました。
C2 noun /ˈlɔːndrəs/

laundress

ランドレス
Meaning
A woman whose job is washing clothes and linens.
Example
The laundress delivered the freshly cleaned clothes to the household.
ランドレスは新しく洗った衣類を家に届けました。
C2 adjective /ˈkɒŋɡruənt/

congruent

合同
Meaning
in agreement or harmony; having the same shape and size in geometry
Example
Their values are congruent with the goals of the organization.
彼らの価値観は組織の目標と一致しています。
C2 verb /ˈwiːdəl/

wheedle

お世辞で説得する
Meaning
to persuade or coax someone by using flattery or smooth talk
Example
She managed to wheedle extra pocket money from her father.
彼女は父親から追加の小遣いを得ることに成功した。
C2 noun /ˈpæn.θi.ɪ.zəm/

pantheism

汎神論
Meaning
The belief that God and the universe are identical, or that everything is a manifestation of God.
Example
Spinoza’s philosophy is often associated with pantheism.
スピノザの哲学はしばしば汎神論と関連付けられます。
C2 noun /ˈrɪvjʊlət/

rivulet

小川
Meaning
a small stream of water; a tiny brook
Example
A rivulet ran down the hillside after the rain.
雨の後、小川が丘を下った。
C2 adjective /ˈɡɑːrbəld/

garbled

乱れた
Meaning
Describes speech or text that is distorted or unclear.
Example
The radio broadcast was full of garbled messages.
ラジオ放送にはガーブルドメッセージが満載でした。
C2 noun /pʌɡˈnæsɪti/

pugnacity

好戦的
Meaning
A natural disposition to be combative or aggressive.
Example
The coach admired the player's pugnacity on the field.
コーチはフィールドで選手のパグナシティを賞賛しました。
C2 noun /ˈɛksplɪkeɪtər/

explicator

解説者
Meaning
a person who explains or interprets something in detail
Example
The critic served as an explicator of the poet’s complex works.
批評家は詩人の複雑な作品の解説者として務めました。
C2 noun /ɪnˈdɛntʃər/

indenture

Meaning
A formal legal agreement, contract, or document, often relating to work or service.
Example
In the 18th century, many workers came under indenture to work overseas.
C2 noun /ˈdʒæɡ.ər.i/

Jaggary

ジャガリー
Meaning
unrefined sugar made from sugarcane or palm sap; a traditional sweetener
Example
My grandmother uses jaggery instead of white sugar in her recipes.
私の祖母はレシピで白い砂糖の代わりにジャガリーを使います。
C2 verb /ˈæsəneɪt/

assonate

韻を踏む
Meaning
To correspond or agree in sound, especially by vowel sounds; to rhyme approximately.
Example
The lines assonate beautifully, giving the song a unique flow.
その行は美しく韻を踏んでおり、歌に独特の流れを与えています。
C2 adjective /ˈbuːtləs/

bootless

無駄な
Meaning
Useless or futile; of no benefit.
Example
His bootless attempt to fix the machine only wasted time.
機械を修理する彼の無駄な試みは時間を無駄にしただけだった。
C2 adjective /ˈviː.ni.əl/

Venial

許しがたい; 深刻ではない; 小さな
Meaning
forgivable; not seriously wrong; minor
Example
His late arrival was considered a venial offense.
彼の遅れた到着は許しがたい違反と見なされました。
C2 adjective /ˌpɒliˈæn.ɪ.ɪʃ/

pollyannaish

過度に楽観的
Meaning
overly or blindly optimistic
Example
Her pollyannaish attitude ignored the obvious problems.
彼女の過度に楽観的な態度は明らかな問題を無視していた。
C2 adjective /ˈdəʊl.səm/

dolesome

悲しい
Meaning
Filled with grief or sadness; mournful.
Example
The dolesome ballad brought tears to their eyes.
その悲しい歌は彼らの目に涙をもたらしました。
C2 noun /ˌɪnvəˈluːʃən/

involution

インヴォリューション
Meaning
a complicated or intricate form or state; in biology, the shrinking of an organ after its function has finished
Example
The story was full of involution, making it hard to follow.
その話はインヴォリューションで満ちており、追うのが難しかった。
C2 adjective /ˈreə.rɪ.faɪd/

rarefied

Meaning
Of high moral, intellectual, or cultural value; distant from ordinary life.
Example
He works in the rarefied world of classical music.
C2 noun /ænˈtɪstrəfi/

antistrophe

アンチストロフィー (修辞法の一つ)
Meaning
A rhetorical device in which a word or phrase is repeated at the end of successive clauses; in Greek choral poetry, the part of the ode sung by the chorus in return movement.
Example
The poet used antistrophe to emphasize the repeated phrase.
詩人は繰り返されるフレーズを強調するためにアンチストロフィーを使用しました。
C2 noun /ˌkɑːrt ˈblɑːnʃ/

carte blanche

Meaning
complete freedom to act as one wishes
Example
The manager gave her team carte blanche to design the project.
C2 adjective /ˈɛrzæts/

ersatz

代用品
Meaning
made or used as a substitute, typically an inferior one
Example
The cheap shoes were made of ersatz leather.
安い靴は代用品の合成皮革で作られていました。
C2 verb /sɛkˈstuːpəl/

sextuple

セクストゥプル
Meaning
to make or become six times as great or as many
Example
Within two quarters, the campaign sextupled their daily sign-ups.
2つの四半期で、キャンペーンは毎日のサインアップ数を6倍にしました。
C2 noun /ˌɛərəˈstætɪks/

aerostatics

エアロスタティクス
Meaning
The branch of physics that deals with the equilibrium of air and gases and the forces acting on bodies in them.
Example
Aerostatics is essential for understanding how balloons float.
エアロスタティクスは、気球がどのように浮かぶかを理解するために不可欠です。
C2 noun /tɔːˈtɒlədʒi/

tautology

不必要な繰り返し
Meaning
the unnecessary repetition of the same idea in different words
Example
The phrase 'it will happen or it won’t' is a tautology.
'それは起こるかもしれないし、起こらないかもしれない'というフレーズはトートロジーです。
C2 noun /ˈmiːliərɪzəm/

meliorism

改良主義
Meaning
The belief that the world tends to improve and that humans can aid its betterment.
Example
Her philosophy of meliorism kept her hopeful during difficult times.
彼女の改良主義的な哲学は、困難な時期に彼女を希望に満ちた状態に保ちました。
C2 noun, adjective /nɒn ˈkɒmbətənt/

non-combatant

非戦闘員
Meaning
a person not engaged in fighting during a war, such as civilians or medical staff
Example
The Red Cross workers were treated as non-combatants in the conflict.
赤十字のスタッフは紛争で非戦闘員として扱われました。
C2 noun /ˌɛksəˈdʒiːsɪs/

exegesis

注解
Meaning
A critical explanation or interpretation of a text, especially a religious scripture.
Example
The professor gave a detailed exegesis of the biblical passage.
教授は聖書の一節の詳細な注解を提供した。
C2 noun /ˈθɝː.moʊ.klaɪn/

thermocline

サーモクライン
Meaning
A layer in a body of water in which temperature changes rapidly with depth.
Example
The thermocline separates warm surface water from cold deep water.
サーモクラインは、暖かい表面水と冷たい深層水を分けます。
C2 noun /ˈkwɪzlɪŋ/

quisling

裏切り者
Meaning
A traitor who collaborates with an enemy force occupying their country.
Example
During the war, he was branded a quisling for aiding the invaders.
戦争中、彼は侵略者を助けたため、クイズリングとしてレッテルを貼られました。
C2 adjective /ˈvoʊlənt/

volant

飛べる
Meaning
able to fly or moving swiftly
Example
The volant bird soared gracefully across the sky.
その飛べる鳥は空を優雅に飛んでいました。
C2 noun /ˌɑːrtʃˈdiːkən/

archdeacon

大執事
Meaning
A senior clergyman in the Christian Church ranking below a bishop.
Example
The archdeacon assisted the bishop in administrative duties.
アーチディーコンは行政業務で主教を支援した。
C2 noun /niːp/

neap

小潮
Meaning
A tide just after the first or third quarters of the moon when the difference between high and low tide is least.
Example
During a neap tide, the water level change is minimal.
ニープタイドの間、水位の変化は最小限です。
C2 adjective /ˈhæm ˌhændɪd/

ham-handed

不器用
Meaning
clumsy or inept in handling things or situations
Example
His ham-handed attempt to fix the computer made it worse.
彼の手際の悪い試みでコンピュータがさらに悪化しました。
C2 adjective /æbˈstruːs/

abstruse

難解
Meaning
Difficult to understand; obscure.
Example
The abstruse nature of the philosophical debate left many confused.
哲学的議論の難解な性質は多くの人々を困惑させた。
C2 noun /pəˈræm.bjə.leɪ.tər/

Perambulator

ベビーカー
Meaning
a four-wheeled carriage for a baby; baby stroller or pram
Example
She pushed the perambulator through the park while the baby slept peacefully.
彼女は公園を通り抜けながら、赤ちゃんが静かに寝ている間にペランブレータを押していました。
C2 noun /ˈbʌɡəˌbuː/

bugaboo

恐怖 / 不安
Meaning
An object of fear or worry; an imagined cause of anxiety.
Example
The threat of inflation became a political bugaboo.
インフレーションの脅威は政治的な恐怖に変わった。
C2 noun /ɪˈfʌldʒəns/

effulgence

輝き
Meaning
Brilliant radiance or shining brightness.
Example
The effulgence of the sunrise lit up the entire valley.
日の出の輝きが谷全体を照らした。
C2 noun /red ˌəʊ.liˈæn.dər/

Red oleander

赤いオリンダー
Meaning
a poisonous flowering shrub with bright red or pink flowers
Example
The red oleander blooms throughout the summer months.
赤いオリンダーは夏の数ヶ月間咲きます。
C2 adjective /ˈhiːðənɪʃ/

heathenish

野蛮
Meaning
Lacking culture or religion; barbaric or uncivilized.
Example
They considered the ancient tribe’s rituals heathenish.
彼らは古代部族の儀式を未開だと考えた。
C2 noun /ˈpær.ɪ.saɪd/

parricide

親殺し
Meaning
The act of killing one's father, mother, or other close relative.
Example
The court tried him for parricide after the tragic incident.
悲劇的な事件の後、裁判所は彼を親殺しの罪で裁いた。
C2 noun /ˌspoʊliˈeɪʃən/

spoliation

破壊
Meaning
The act of destroying or ruining something, often evidence or property.
Example
The court punished the company for the spoliation of evidence.
裁判所は証拠の破壊のために会社を罰しました。
C2 noun /bɑːrd/

bard

詩人
Meaning
a poet, traditionally one reciting epics and associated with oral traditions
Example
Shakespeare is often called the Bard of Avon.
シェイクスピアはしばしばアヴォンの詩人と呼ばれます。
C2 noun /ˌbluː ˈblʌd/

Blue-blood

ブルーブラッド
Meaning
a person of noble birth; aristocrat
Example
She came from a family of blue-bloods with centuries of royal heritage.
彼女は数世代にわたる王室の遺産を持つブルーブラッドの家族から来ました。
C2 noun /ˈrɛtɪnjuː/

retinue

従者
Meaning
A group of attendants or followers accompanying an important person.
Example
The king entered the hall followed by his retinue.
王は従者を引き連れてホールに入った。
C2 noun /roʊˈtʌn.də/

rotunda

円形の建物
Meaning
a large circular building or hall, often with a dome
Example
Tourists gathered inside the grand rotunda of the capitol.
観光客は議会堂の壮大なロタンダの中に集まりました。
C2 noun /ˈzɛfər/

zephyr

やわらかな風
Meaning
A soft gentle breeze.
Example
A warm zephyr blew through the valley.
温かいやわらかな風が谷を吹き抜けました。
C2 adjective /pʌɡˈneɪʃəs/

pugnacious

好戦的な
Meaning
Having a quarrelsome or combative nature; eager to fight.
Example
His pugnacious attitude often got him into trouble.
彼の好戦的な態度はしばしば彼を困難に陥れました。
C2 adjective /ˌɪn.ɪˈlʌk.tə.bəl/

ineluctable

Meaning
Impossible to avoid or escape; inevitable.
Example
Death is an ineluctable part of human existence.
C2 noun /ɪˈluːmɪnənt/

illuminant

光源
Meaning
A substance or device that produces light.
Example
The lamp acted as an illuminant in the dark cave.
ランプは暗い洞窟で光源として機能しました。
C2 adjective /dɪsˈkʌmfɪtɪŋ/

discomfiting

不快な
Meaning
Causing unease, embarrassment, or discomfort.
Example
His discomfiting questions made everyone shift uncomfortably in their seats.
彼の不快な質問は、皆が座席で不安そうに動かせるようにさせた。
C2 verb /ˈvɛəriəˌɡeɪt/

variegate

多様化する
Meaning
To diversify or mark with different colors or patterns.
Example
The artist used different shades to variegate the design.
アーティストはデザインを多様化するために異なる色合いを使いました。
C2 noun /ˈvɛrɪti/

verity

真実性
Meaning
a true principle or belief; the state of being true
Example
The verity of his statement was confirmed by evidence.
彼の声明の真実性は証拠によって確認されました。
C2 noun /ˈɛksɪdʒənsi/

exigency

緊急の必要性
Meaning
an urgent need or demand requiring immediate attention
Example
In times of war, the exigency of the situation requires quick decisions.
戦争の時、状況の緊急の必要性は迅速な決定を要求する。
C2 noun /ˌræproʊʃˈmɑːn/

rapprochement

関係修復
Meaning
The establishment or resumption of harmonious relations.
Example
The two countries signed an agreement that marked a new rapprochement.
二国は新しい関係修復を示す合意書に署名した。
C2 noun/verb /ˈʌpˌkæst/

upcast

上に投げる
Meaning
Verb: To cast or throw upward. Noun: Something thrown or directed upward.
Example
The fisherman upcast his net into the air.
漁師は彼の網を空中に投げた。
C2 adjective /mɔːrˈdeɪʃəs/

mordacious

辛辣または皮肉な
Meaning
Sharp or biting in style, tone, or remark; sarcastic.
Example
The critic’s mordacious review offended the author.
批評家の辛辣なレビューは著者を怒らせた。
C2 verb /dɪˈspɔɪl/

despoil

略奪する
Meaning
To steal or violently remove valuable possessions from a place.
Example
The invaders despoiled the village during the war.
侵略者は戦争中に村を略奪しました。
C2 noun /sɪnˈtɪl.ə/

scintilla

小さな火花
Meaning
A tiny trace or spark of a specified quality or feeling.
Example
There wasn’t a scintilla of doubt in her mind.
彼女の心には疑いのひらめきもなかった。
C2 adjective /ˈdʒɔːnti/

jaunty

陽気な
Meaning
Having a lively, cheerful, and self-confident manner or appearance.
Example
He walked into the room with a jaunty step.
彼は陽気な足取りで部屋に入った。
C2 adjective /prɪˈsɛnʃənt/

presentient

予感
Meaning
Having a feeling or sense of something about to happen; predictive.
Example
She was presentient of the coming disaster.
彼女は迫り来る災害を予感していた。
C2 verb /ˈdɛsɪkeɪt/

desiccate

乾燥させる
Meaning
to dry up completely or remove the moisture from something
Example
The hot sun can quickly desiccate plants in the desert.
暑い太陽は砂漠の植物をすぐに乾燥させることができます。
C2 verb /prəˈpaʊnd/

propound

提案する
Meaning
To put forward an idea, theory, or point for consideration.
Example
The professor propounded a new theory on climate change.
教授は気候変動に関する新しい理論を提案しました。
C2 noun /ˈlɒdʒ.mənt/

lodgment

仮宿
Meaning
The act of lodging or a place of temporary stay; also a deposit of something.
Example
The soldiers found lodgment in the abandoned house.
兵士たちは廃屋で仮宿を見つけました。
C2 noun /ˈfaɪər.brænd/

firebrand

活動家
Meaning
a person who is passionate about a cause, often inciting change or action
Example
The activist was a true firebrand, inspiring everyone around him to join the protest.
その活動家は本物の火のような情熱を持ち、周りの全員を抗議に参加させた。
C2 noun /ˌɪnkənˈɡruːəti/

incongruity

不一致
Meaning
The state of being inconsistent or out of place.
Example
The incongruity of his cheerful mood during the funeral shocked everyone.
葬式の最中に彼の陽気な気分の不一致は、皆を驚かせました。
C2 verb /pərˈveɪ/

purvey

供給する
Meaning
to supply or provide goods, services, or information, often as a business
Example
The company purveys organic food to health-conscious customers.
その会社は健康意識の高い顧客にオーガニック食品を供給しています。
C2 verb (past tense, past participle), adjective /ˈhæmstrʌŋ/

hamstrung

無力または制限された
Meaning
crippled or severely restricted in movement or progress.
Example
The team was hamstrung by lack of resources.
チームはリソース不足で制約を受けていた。
C2 noun /ˌbeɪt ˈnwɑːr/

bete noire

特に嫌われるもの
Meaning
A person or thing that one particularly dislikes or fears.
Example
Grammar has always been his bete noire.
文法は常に彼のベットノワールでした。
C2 noun ˈtɪl.ɪdʒ

tillage

耕作
Meaning
The preparation of land for growing crops.
Example
Excessive tillage can lead to soil erosion.
過度の耕作は土壌侵食を引き起こす可能性があります。
C2 noun /ˈsɪŋkrəˌnɪzəm/

synchronism

シンクロニズム
Meaning
The simultaneous occurrence of events or actions.
Example
The synchronism of the dancers' movements amazed the audience.
ダンサーの動きのシンクロニズムは観客を驚かせました。
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。
C2 verb /næʃ/

gnash

歯ぎしりをする
Meaning
to grind or strike the teeth together, often in anger or frustration
Example
He began to gnash his teeth in rage.
彼は怒りで歯ぎしりを始めた。
C2 noun /maɪˈæzmə/

miasma

悪臭の空気
Meaning
An unpleasant or unhealthy smell or atmosphere.
Example
A miasma of decay hung over the abandoned house.
腐敗の気配が廃墟の上に漂っていた。
C2 noun /əˈkwaɪərmənt/

acquirement

取得; 習得
Meaning
the act of acquiring something; something that has been acquired, especially a skill or possession
Example
Language proficiency is an important acquirement for global careers.
語学力はグローバルなキャリアにとって重要な取得です。
C2 adjective /ˌɛl.ɪˈmɑː.səˌnɛr.i/

eleemosynary

慈善的な
Meaning
Relating to charity; dependent on or supported by charity.
Example
The hospital was founded as an eleemosynary institution.
病院は慈善的な機関として設立されました。
C2 noun /ˌfaɪ.təʊˈkem.ɪ.kəlz/

phytochemicals

フィトケミカル
Meaning
Natural chemical compounds produced by plants that provide health benefits beyond basic nutrition, often having antioxidant properties.
Example
Phytochemicals in green tea help reduce inflammation.
緑茶に含まれるフィトケミカルは炎症を軽減するのに役立ちます。
C2 adjective /ˌɛl.ɪˈdʒaɪ.ək/

elegiac

エレジアック
Meaning
Expressing sorrow, often for something past; resembling an elegy.
Example
The novel ends on an elegiac note, mourning the lost era.
小説は失われた時代を悼むエレジアックな調子で終わる。
C2 adjective /ˌɪnkənˈsɪdərəbl/

inconsiderable

取るに足らない
Meaning
Too small or unimportant to be worth considering.
Example
The donation was not inconsiderable, though smaller than expected.
寄付は取るに足らなかったが、予想よりも小さかった。
C2 adjective /dʒɪˈdʒuːn/

jejune

未熟 / 表面的 / 退屈
Meaning
Naive, simplistic, and superficial; also dull or uninteresting.
Example
The professor dismissed the essay as jejune and lacking depth.
教授はそのエッセイを未熟で深みがないとして却下した。
C2 adjective /pɒnˈtɪfɪkəl/

pontifical

教皇または司教に関連する; 傲慢または高慢な
Meaning
relating to a pope or bishop; pompous or self-important
Example
His pontifical manner annoyed the other members of the committee.
彼の高慢な態度は委員会の他のメンバーを困らせた。
C2 noun /næˈteɪʃən/

natation

水泳
Meaning
The act or sport of swimming.
Example
She took lessons in natation to improve her swimming skills.
彼女は泳ぎの技術を向上させるために水泳のレッスンを受けました。
C2 verb /koʊˈæɡjəˌleɪt/

coagulate

凝固
Meaning
to cause a liquid, especially blood, to change into a solid or semi-solid state
Example
The blood quickly coagulated after the cut.
切り傷の後、血液はすぐに凝固しました。
C2 adjective /fjuːˈɡeɪʃəs/

fugacious

儚い
Meaning
Lasting only a short time; fleeting or ephemeral.
Example
Youth is beautiful but fugacious.
青春は美しいが、儚い。
C2 verb /ˈmæsəˌreɪt/

macerate

浸す
Meaning
to soften or break up something, especially food, by soaking in liquid
Example
The chef macerated the fruit in wine before serving.
シェフは果物をワインにマセレートしてから提供しました。
C2 adjective /ɪnˈkɒŋɡruənt/

incongruent

不一致な
Meaning
Not in harmony or keeping with the surroundings or other aspects.
Example
His casual outfit looked incongruent at the formal dinner.
彼のカジュアルな服装は正式なディナーで不一致に見えた。
C2 verb /ˈæktʃueɪt/

actuate

作動させる
Meaning
to put into action or motion; to motivate or activate
Example
The engineer actuated the machine with a simple switch.
エンジニアは簡単なスイッチで機械を作動させました。
C2 noun /bəˈlɛəroʊ/

bolero

ボレロ（スペインのダンスまたは前が開いた短いジャケット）
Meaning
A Spanish dance in slow triple time, or a short jacket open at the front.
Example
The dancers performed a passionate bolero at the festival.
ダンサーたちはフェスティバルで情熱的なボレロを演奏しました。
C2 noun /wɜːrl/

whorl

渦巻き
Meaning
A pattern of spirals or concentric circles, often found in fingerprints, shells, or flowers.
Example
The fingerprint displayed a clear whorl pattern.
指紋に明確な渦巻きのパターンが表示されていました。
C2 noun /ˈtrɛntʃərmən/

trencherman

大食い
Meaning
a person who eats in a hearty or robust manner; a big eater
Example
The trencherman devoured the feast with great enthusiasm.
その大食いは大きな熱意でご馳走を食べました。
C2 adjective /ˈɪndələnt/

indolent

怠惰
Meaning
Wanting to avoid activity or exertion; lazy.
Example
The indolent cat slept in the sun all afternoon.
怠惰な猫は午後ずっと太陽の下で寝ていました。
C2 verb /pərˈtɪkjələrˌaɪz/

particularize

詳細に述べる
Meaning
to mention or describe something in detail
Example
The witness was asked to particularize the events of that night.
証人はその夜の出来事を詳細に説明するように求められました。