neuroscientific
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C2 adjective ˌnjʊə.rəʊ.saɪənˈtɪ.fɪk

neuroscientific

神経科学的
Meaning
Related to the scientific study of the brain and nervous system.
Example
Neuroscientific research helps understand memory retention.
ニューロサイエンティフィックな研究は、記憶の保持を理解するのに役立ちます。
C2 adjective /ˈfɒp.ɪʃ/

Foppish

自分の外見や服に過剰にこだわる; 服装にうぬぼれがある
Meaning
excessively concerned with one's appearance and clothes; vain about dress
Example
His foppish behavior and expensive clothes made him stand out.
彼のフォピッシュな態度と高価な服は彼を目立たせました。
C2 adjective /ˈprɛfətɔːri/

prefatory

序文的
Meaning
serving as an introduction or preface
Example
He made some prefatory remarks before the lecture began.
彼は講義が始まる前にいくつかの序文的な発言をした。
C2 noun /sɪˈrɒkoʊ/

sirocco

熱く乾燥した風
Meaning
A hot, dry wind blowing from North Africa across the Mediterranean to southern Europe.
Example
The sirocco made the city unbearably hot and dusty.
シロッコは街を耐えられないほど暑く、ほこりっぽくした。
C2 verb /ˈrævəl/

ravel

絡まる / 解く
Meaning
to tangle or complicate; to untangle or unravel depending on context
Example
She began to ravel the loose threads of the sweater.
彼女はセーターのゆるい糸をほどき始めました。
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。
C2 noun /ˈhɛptəˌɡɒn/

heptagon

七角形
Meaning
A polygon with seven sides and seven angles.
Example
The math teacher drew a heptagon on the board.
数学の先生は黒板にヘプタゴンを描きました。
C2 noun /ˈsɜːrfɪt/

surfeit

過剰
Meaning
an excessive amount of something
Example
There was a surfeit of food at the festival.
祭りでは食べ物が過剰にあった。
C2 noun /dɪˈstɛnʃən/

distention

膨張
Meaning
The state of being swollen due to internal pressure.
Example
The patient complained of abdominal pain and distention.
患者は腹痛と膨張感を訴えました。
C2 noun /ˈsɛpəlˌtʃər/

Sepulture

墓; 埋葬;
Meaning
the act of burying a dead body; burial; a grave or tomb
Example
The ancient king's sepulture was discovered by archaeologists.
古代の王のセパルチャーは考古学者によって発見されました。
C2 noun /əˈfeɪ.ʒə/

aphasia

Meaning
a medical condition that causes loss of ability to speak or understand language
Example
After the stroke, she was diagnosed with aphasia.
C2 verb /fleɪl/

flail

何かを激しく振る; 必死に動く
Meaning
to wave or swing something about wildly; to thrash about
Example
He flailed his arms to keep afloat in the water.
彼は水に浮かぶために腕を振った。
C2 verb /dɪsˈbɜːrs/

disburse

分配する
Meaning
to pay out money, especially from a fund
Example
The organization will disburse the funds to the affected families.
その団体は影響を受けた家族に資金を分配します。
C2 noun /pɛnˈtæmɪtər/

pentameter

ペンタメーター
Meaning
A line of verse consisting of five metrical feet.
Example
Shakespeare often wrote his plays in iambic pentameter.
シェイクスピアはよくアイアンビック・ペンタメーターで劇を書きました。
C2 verb /bɪˈlaɪ/

belie

偽る
Meaning
To give a false impression of something; to contradict.
Example
His calm face belied his inner anxiety.
彼の落ち着いた顔は彼の内なる不安を偽っていた。
C2 noun /bɪsk/

bisque

シーフードスープ
Meaning
A rich, creamy soup made from shellfish.
Example
We ordered lobster bisque at the restaurant.
レストランでロブスタービスクを注文しました。
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 noun /ˈhaʊsˌbreɪkɪŋ/

housebreaking

住居侵入
Meaning
the crime of breaking into a house with intent to steal
Example
The thief was arrested for housebreaking.
泥棒は住居侵入で逮捕された。
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 /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。
C2 verb /ˈseɪʃiˌeɪt/

satiate

満たす
Meaning
To satisfy fully, especially with food or desire.
Example
The large meal satiated his hunger.
大きな食事が彼の空腹を満たしました。
C2 verb /ˌdɪsəˈvaʊ/

disavow

否定する
Meaning
to deny responsibility for or connection with something
Example
He disavowed any involvement in the scandal.
彼はスキャンダルへの関与を否定した。
C2 adjective/noun /fɪˈduː.ʃi.er.i/

fiduciary

信託の
Meaning
Involving trust, especially with regard to the relationship between a trustee and a beneficiary.
Example
Banks have fiduciary duties towards their clients.
銀行は顧客に対して信託義務を負っています。
C2 adjective /ˌɪndɪˈtɜːrmənət/

indeterminate

不確定
Meaning
Not exactly known, defined, or established; vague or uncertain.
Example
The project was delayed for an indeterminate amount of time.
プロジェクトは不確定な期間に延期されました。
C2 adjective /ˈprɒvɪdənt/

provident

先見の明のある
Meaning
making or indicative of timely preparation for the future
Example
She was provident in saving money for her children’s education.
彼女は子供たちの教育のためにお金を節約する先見の明のある人だった。
C2 verb /ɪnˈθroʊn/

enthrone

戴冠する
Meaning
to install someone on a throne or to give someone high status
Example
The king was enthroned in a grand ceremony.
王は大きな儀式で即位しました。
C2 adjective /ˈθʌroʊˌɡoʊɪŋ/

thoroughgoing

完全な、徹底的な
Meaning
carried out to the full extent; absolute and complete
Example
She is a thoroughgoing professional in every sense.
彼女はあらゆる意味で徹底的なプロフェッショナルです。
C2 verb /əˈdʒʌdʒ/

adjudge

判決する
Meaning
to consider or declare officially in a legal or formal manner
Example
He was adjudged guilty by the court.
彼は裁判所によって有罪とされました。
C2 noun /mɪˈsɑːɡəmi/

misogamy

ミソガミー
Meaning
Hatred or dislike of marriage.
Example
His misogamy prevented him from ever settling down with a partner.
彼のミソガミーは、パートナーと一緒に落ち着くことを妨げた。
C2 adjective /flɛgˈmæt.ɪk/

phlegmatic

冷静
Meaning
having an unemotional and stolidly calm disposition
Example
Despite the chaos, he remained phlegmatic and composed.
混乱の中で、彼は冷静で落ち着いていました。
C2 noun /ɔːˈreɪʃən/

oration

演説
Meaning
A formal speech, especially one given on a ceremonial occasion
Example
The president delivered an inspiring oration.
大統領は感動的な演説を行いました。
C2 noun /sʌbˈɔːl.tən/

subaltern

下級の立場にある人；軍隊では、若い将校
Meaning
A person holding a subordinate position; in the military, a junior officer.
Example
The subaltern was responsible for leading a small platoon of soldiers.
サブオルターナは小さな小隊を指揮する責任がありました。
C2 noun/adjective /ɪˈmɒliənt/

emollient

肌を柔らかくする物質
Meaning
a substance that softens or soothes the skin
Example
She used an emollient cream to treat her dry skin.
彼女は乾燥肌を治すためにエモリエントクリームを使いました。
C2 adjective ˈkoʊ.dʒənt

cogent

説得力のある
Meaning
Clear, logical, and convincing.
Example
His cogent argument convinced the jury.
彼の説得力のある議論は陪審員を納得させた。
C2 noun /ˈpɒl.iˌθi.ɪz.əm/

polytheism

多神教
Meaning
the belief in or worship of multiple gods
Example
Ancient Greeks practiced polytheism, worshiping gods like Zeus and Athena.
古代ギリシャ人はポリシズムを実践し、ゼウスやアテナのような神々を崇拝していました。
C2 verb /haɪ/

hie

急ぐ
Meaning
to go quickly; hasten
Example
He hied to the station to catch the train.
彼は電車に乗るために駅へ急いだ。
C2 noun /frɒnd/

frond

葉
Meaning
A large, divided leaf of a fern, palm, or similar plant.
Example
The fern's frond stretched gracefully over the garden path.
シダの葉は庭の小道を優雅に伸びました。
C2 noun /ˈpɜːrvjuː/

purview

範囲
Meaning
the scope or range of authority, responsibility, or knowledge
Example
The case does not fall within the purview of this court.
この事件はこの裁判所の管轄外です。
C2 adjective /pərˈfɛktəbl/

perfectible

完璧にできる
Meaning
capable of being made perfect or improved
Example
Human nature is imperfect but perfectible.
人間の本性は不完全だが、完璧にできる。
C2 adjective /kəˈkɒfənəs/

cacophonous

不協和音
Meaning
Producing a harsh, discordant mixture of sounds.
Example
The cacophonous sounds of the city kept her awake all night.
街の不協和音で彼女は一晩中目が覚めていた。
C2 noun /ˈfɔːθ.raɪt.nəs/

forthrightness

坦率さ
Meaning
The quality of being honest and straightforward; directness.
Example
Her forthrightness made her a respected journalist.
Her forthrightness made her a respected journalist.
C2 noun /ˈsaɪ.nəˌʃʊr/

cynosure

皆の注目の的
Meaning
A person or thing that is the center of attention or admiration.
Example
She was the cynosure of all eyes at the party.
彼女はパーティーで皆の注目の的でした。
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 verb /blæsˈfiːm/

blaspheme

冒涜する
Meaning
to speak irreverently about God or sacred things
Example
He was accused of blaspheming during the heated argument.
彼は激しい議論中に冒涜したとして告発されました。
C2 noun /dʒɔːnt/

jaunt

短い旅行
Meaning
A short journey or excursion, usually taken for pleasure.
Example
They went on a weekend jaunt to the countryside.
彼らは週末に田舎へ短い旅行に行きました。
C2 adverb /əˈθwɔːrt/

athwart

横断, 反対
Meaning
Across or in opposition to something.
Example
A fallen tree lay athwart the road, blocking traffic.
倒れた木が道路を横断して、交通を妨げていた。
C2 adjective /ˈkrɛdʒʊləs/

credulous

信用しやすい
Meaning
Having or showing too great a readiness to believe things.
Example
The credulous child believed every story she heard.
その信用しやすい子供は、聞いた話をすべて信じました。
C2 adjective /ˌpluːˈpɜːrfɪkt/

pluperfect

過去完了形
Meaning
a verb tense expressing an action completed before another past action
Example
By the time she arrived, he had finished his homework, showing the pluperfect tense.
彼女が到着したとき、彼はすでに宿題を終わらせており、過去完了形を示しています。
C2 adjective /ˈwiːk niːd/

weak-kneed

臆病
Meaning
Lacking determination or courage; easily frightened or yielding.
Example
The leader was criticized for being weak-kneed in the face of opposition.
リーダーは反対に直面したとき、臆病だと批判されました。
C2 verb /bɪˈliːɡər/

beleaguer

包囲する, 困らせる
Meaning
to cause difficulties, troubles, or harassment; to surround with military forces
Example
The company was beleaguered by constant complaints from its customers.
その会社は顧客からの絶え間ない苦情で包囲されていた。
C2 noun /ˈpɒtˌbɔɪlə/

potboiler

安物の作品
Meaning
a book, play, or film produced quickly to make money rather than for artistic value
Example
The novel was dismissed by critics as a mere potboiler.
その小説は批評家によってただの安物の作品だと退けられた。
C2 noun /ˌɪmpəˈtjuːəsəti/

impetuosity

衝動性
Meaning
The quality of being rash or impulsive.
Example
His impetuosity often got him into trouble.
彼の衝動性はしばしば彼を問題に巻き込んだ。
C2 verb /ˈpɜːrdʒər/

perjure

偽証する
Meaning
To knowingly tell a lie in a court of law after swearing to tell the truth.
Example
He was accused of trying to perjure himself during the trial.
彼は裁判中に偽証しようとしたとして告発されました。
C2 noun /rɪˈvaɪ.zəl/

revisal

改訂
Meaning
The act of revising, reviewing, or making changes to something.
Example
The revisal of the contract took longer than expected.
契約の改訂には予想以上の時間がかかりました。
C2 noun /ˈlæɡ.ərd/

Laggard

遅れて進む人; 他の人より遅れを取る人
Meaning
a person who makes slow progress and falls behind others; someone who is slow to act
Example
The laggard student finally submitted his assignment after the deadline.
遅れた学生は締め切り後にようやく課題を提出しました。
C2 noun /ˌkɒnsaɪˈniː/

consignee

受取人
Meaning
the person or company to whom goods are delivered
Example
The consignee received the shipment on time.
受取人は時間通りに配送を受け取りました。
C2 verb /ˈkɒsɪt/

cosset

甘やかす
Meaning
to care for and protect in an overindulgent way
Example
The little girl was cosseted by her grandparents.
小さな女の子は祖父母に甘やかされました。
C2 verb /ˈpʌlvəraɪz/

pulverize

粉砕する
Meaning
To crush or grind something into a fine powder; to completely defeat or destroy.
Example
The machine can pulverize stones into dust.
その機械は石を粉々にすることができます。
C2 noun /laɪər/

lyre

ライアー
Meaning
a stringed musical instrument of ancient Greece
Example
The musician played a melody on the lyre.
ミュージシャンはライアーでメロディーを演奏しました。
C2 adjective /ˈneɪtl/

natal

出生に関連する
Meaning
Relating to birth or the place of birth.
Example
She returned to her natal village after many years.
彼女は何年も経った後、故郷の村に帰りました。
C2 noun /ˌær.əˈbɪl.ɪ.ti/

arability

耕作能力
Meaning
The quality of land being suitable for growing crops.
Example
The arability of land depends on soil quality and water availability.
土地の耕作能力は土壌の質と水の利用可能性に依存しています。
C2 noun /mjuːˈnɪfəsəns/

munificence

寛大さ
Meaning
great generosity or lavish giving
Example
The hospital was built thanks to the munificence of a wealthy donor.
病院は裕福な寄付者の寛大さのおかげで建てられました。
C2 noun /dɪsˈjuːnjən/

disunion

分裂
Meaning
the state of being separated or not united
Example
Civil wars often result from national disunion.
内戦はしばしば国家の分裂から起こる。
C2 adjective /kənˈtraɪt/

contrite

後悔している
Meaning
feeling or showing remorse or guilt
Example
She was contrite after realizing her mistake.
彼女は自分の間違いに気づいた後、後悔していた。
C2 noun /ˈnɛkrəˌmænsi/

necromancy

死霊術
Meaning
the practice of communicating with the dead, often to predict the future
Example
Ancient texts described rituals of necromancy performed by priests.
古代の文献には、神父たちによって行われた死霊術の儀式が記述されています。
C2 noun /ˌɪnˌkeɪpəˈbɪləti/

incapability

無能力
Meaning
lack of ability or power to do something; inability or incompetence
Example
His incapability to manage the team led to serious problems.
チームを管理する彼の無能力は深刻な問題を引き起こした。
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。
C2 adjective /əˈprəʊ.bri.əs/

opprobrious

侮辱的な
Meaning
Expressing strong criticism or scorn.
Example
He made opprobrious remarks about his opponent.
彼は対戦相手に対して侮辱的な発言をしました。
C2 noun /ʃɪˈkeɪnəri/

chicanery

詐欺
Meaning
The use of trickery or deception to achieve a purpose.
Example
The politician was accused of chicanery to win the election.
その政治家は選挙に勝つために詐欺を使ったとして非難された。
C2 adverb, noun /ˈwɛə.wɪð/

wherewith

手段
Meaning
With which; the means or resources needed for something.
Example
He lacked the money wherewith to buy a new house.
彼は新しい家を買うためのお金がなかった。
C2 noun /ˈɡraɪndstoʊn/

grindstone

砥石
Meaning
a thick disc of stone used for grinding, sharpening, or polishing tools
Example
The blacksmith sharpened his blade on the grindstone.
鍛冶屋はグラインドストーンで刃を研いだ。
C2 adjective /ˈnæti/

natty

おしゃれ
Meaning
Neat, stylish, and fashionable in appearance.
Example
He looked very natty in his new suit.
彼は新しいスーツでとてもおしゃれに見えた。
C2 noun /mɪˌsɛdʒəˈneɪʃən/

miscegenation

人種間結婚
Meaning
the interbreeding of people considered to be of different racial types
Example
The law once prohibited miscegenation in many countries.
その法律は多くの国で人種間結婚を禁じていました。
C2 verb /ɡɔːk/

gawk

じっと見る
Meaning
To stare openly and rudely.
Example
Tourists gawked at the celebrity walking down the street.
観光客は通りを歩く有名人をじっと見ていた。
C2 noun /ˈmæl.əˌfæk.tər/

malefactor

悪党
Meaning
A person who commits a crime or does evil.
Example
The malefactor was arrested for the robbery.
その悪党は強盗で逮捕された。
C2 adjective /ˈrɪbɔːld/

ribald

下品な冗談
Meaning
Referring to sexual matters in a humorous or vulgar way.
Example
The comedian’s ribald jokes made the audience laugh uncomfortably.
コメディアンの下品な冗談は観客を不快にさせながら笑わせた。
C2 noun /ˈpɪnəs/

pinnace

小型の船
Meaning
a small boat, often carried by a larger ship
Example
The sailors used a pinnace to reach the shore.
船員たちは岸に到達するために小型の船を使いました。
C2 adjective /ˈfrɒlɪksəm/

Frolicsome

遊び好きな; 陽気な; 元気な
Meaning
joyful; playful; merry; cheerful
Example
The frolicsome children laughed and played in the park.
遊び好きな子供たちは公園で笑い、遊んでいました。
C2 noun /ˈdoʊtɪdʒ/

dotage

老年
Meaning
The period of old age, especially when one is weak or senile.
Example
He spent his dotage reminiscing about his youth.
彼は晩年を若い頃を思い出して過ごしました。
C2 adjective /ˈmeɪndʒi/

mangy

汚くて使い古された
Meaning
in poor condition, shabby, dirty, or affected by mange
Example
The stray dog looked mangy and weak.
迷子の犬は汚れて弱々しく見えた。
C2 noun /ˈhɔːrn.bɪl/

Hornbill

ホーンビル鳥
Meaning
a large tropical bird with a large curved beak and often a horn-like projection
Example
The colorful hornbill perched on the highest branch.
色とりどりのホーンビルが最も高い枝に止まった。
C2 adjective /ˌmɛtəˈlɜrdʒɪkəl/

metallurgical

冶金の
Meaning
Relating to metallurgy or the branch of science concerned with the properties of metals and their production.
Example
He studied metallurgical engineering at the university.
彼は大学で冶金工学を学びました。
C2 verb /ˈmɒlikɒdl/

mollycoddle

甘やかす
Meaning
To treat someone in an overprotective and indulgent way.
Example
Parents should avoid mollycoddling their children too much.
親は子供を過度に甘やかすのを避けるべきです。
C2 verb /dʒaɪb/

jibe

皮肉を言う / 一致する
Meaning
to make an insulting remark; to be in agreement or harmony with
Example
His actions did not jibe with his words.
彼の行動は彼の言葉と一致していなかった。
C2 noun /brəˈkeɪd/

brocade

刺繍布
Meaning
a rich fabric woven with a raised pattern, often in gold or silver thread
Example
She wore a beautiful brocade dress to the wedding.
彼女は結婚式で美しいブロケイドのドレスを着ていました。
C2 noun /ˈænθrəsaɪt/

anthracite

硬質石炭
Meaning
A hard, shiny form of coal that burns with little smoke and a high heat value.
Example
The factory used anthracite as its primary fuel source.
工場はアンブラサイトを主な燃料源として使用していました。
C2 verb /əˈbeɪs/

abase

卑下する
Meaning
to belittle or degrade someone
Example
He refused to abase himself before the king.
彼は王の前で自分を卑下するのを拒否した。
C2 verb /ˈkɒd.l̩/

coddle

過保護にする
Meaning
to treat someone with excessive care or kindness, often in a way that is overprotective
Example
Parents should support their children without coddling them.
親は子供を甘やかさずにサポートすべきです。
C2 noun /trəˈveɪl/

travail

過酷な努力
Meaning
Painful or laborious effort; suffering or hardship.
Example
After years of travail, she finally completed her degree.
長年の過酷な努力の末、彼女はついに学位を取得した。
C2 adjective /ɪnˈeɪliənəbl/

inalienable

譲渡不可能
Meaning
Unable to be taken away or transferred; absolute and permanent.
Example
Freedom of speech is an inalienable right.
言論の自由は譲渡不可能な権利です。
C2 adjective /ˌɪrɪˈmiːdiəbl̩/

irremediable

修復不可能
Meaning
Impossible to cure, repair, or remedy.
Example
The damage to the ancient manuscript was irremediable.
古代の写本への損傷は修復不可能でした。
C2 adjective /ˈdʒɒkjələr/

jocular

冗談好きな
Meaning
fond of or characterized by joking; humorous
Example
His jocular nature made him popular among colleagues.
彼の冗談好きな性格は同僚の中で人気があった。
C2 noun /ˌrɛtroʊˈɡrɛʃən/

retrogression

後退
Meaning
a return to a worse or less developed state
Example
The country experienced economic retrogression after the crisis.
国は危機後、経済的な後退を経験しました。
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。
C2 noun /bænˈdænə/

bandanna

大きなカラフルなバンダナ
Meaning
A large, often brightly colored handkerchief, typically worn on the head or around the neck.
Example
He tied a red bandanna around his neck.
彼は首に赤いバンダナを結んだ。
C2 noun /ˈvaɪənd/

viand

珍味
Meaning
an item of food, especially a delicacy
Example
The banquet was filled with rich viands and wines.
晩餐会は豪華な珍味とワインで満たされていた。
C2 adjective /ˈɡʌstəˌtɔːri/

gustatory

味覚の
Meaning
relating to the sense of taste
Example
The restaurant offered a gustatory experience unlike any other.
レストランは他に類を見ない味覚体験を提供しました。
C2 noun /ˈslæt.ən/

slattern

だらしない女性
Meaning
a woman who is untidy or slovenly in appearance or habits
Example
The house looked as if a slattern lived there.
その家は、だらしない女性が住んでいるように見えた。
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 /ˈruːbɪkənd/

rubicund

健康的な赤みを帯びた顔
Meaning
Having a healthy reddish complexion.
Example
The old man’s rubicund face showed he was in good health.
その老人の赤みを帯びた顔は、彼が健康であることを示していた。
C2 adjective /ˈlʌstrəs/

lustrous

光沢のある
Meaning
having a gentle sheen or soft glow
Example
Her hair looked smooth and lustrous.
彼女の髪は滑らかで光沢のあるように見えた。
C2 verb /ˈbɜːrnɪʃ/

burnish

Meaning
To polish something by rubbing; to enhance or improve.
Example
He burnished the old table until it shone.
C2 verb /ˈɪndjʊˌreɪt/

indurate

硬化する
Meaning
To harden or make something physically or emotionally tough.
Example
Years of hardship indurated his spirit.
長年の困難が彼の精神を鍛えました。
C2 adjective /sɛnˈtrɪpɪtəl/

centripetal

向心力
Meaning
Moving or directed toward a center.
Example
Centripetal force keeps the planets in orbit around the sun.
向心力は惑星を太陽の周りの軌道に保ちます。
C2 adjective /ɪnˈkɒnstənt/

inconstant

不安定な
Meaning
frequently changing; not consistent or dependable
Example
His inconstant moods made it difficult to work with him.
彼の不安定な気分は彼と仕事をするのを難しくした。
C2 noun /ˈɔː.rɪ.fɪs/

orifice

孔
Meaning
an opening or hole, especially in the body or a device
Example
The medicine was applied through a small orifice in the device.
薬は装置の小さな孔から適用されました。
C2 noun /rɪˈfɛkʃən/

refection

食事 / 反省
Meaning
a meal or the act of taking food and drink
Example
The monks gathered for their evening refection.
僧侶たちは夕食のために集まりました。
C2 noun /ˈɛnsaɪn/

ensign

旗
Meaning
A flag or standard, especially a military or naval one indicating nationality; also a junior officer in the navy or coast guard.
Example
The ship raised its national ensign before leaving the harbor.
その船は港を出る前に国旗を掲げました。
C2 noun /ˈfɔːrˌseɪl/

foresail

フォアセイル
Meaning
The principal sail set on the foremast of a sailing vessel.
Example
The crew adjusted the foresail to catch the wind.
乗組員は風を捉えるためにフォアセイルを調整しました。
C2 adjective /ɪnˈɡreɪʃiˌeɪtɪŋ/

ingratiating

お世辞を言う
Meaning
Charming or flattering in a way intended to gain favor.
Example
His ingratiating smile made everyone trust him quickly.
彼のお世辞を言う笑顔は、すべての人々に彼を素早く信頼させた。
C2 adjective /əˈvʌŋkjələr/

avuncular

おじさんのように親切
Meaning
kind and friendly, like an uncle
Example
He had an avuncular manner that made everyone feel comfortable.
彼は、みんなが快適に感じるようなアヴァンクラールな態度を持っていました。
C2 adjective /ɪkˈstɛnsəbl/

extensible

拡張可能
Meaning
able to be extended; capable of expansion.
Example
The software is designed to be extensible with new features.
そのソフトウェアは新しい機能で拡張可能なように設計されています。
C2 adjective hjʊˈrɪs.tɪk

heuristic

発見的
Meaning
Enabling a person to discover or learn something for themselves; experimental learning approach.
Example
Teachers use heuristic techniques to encourage self-learning.
教師は自学を促すために発見的な技法を使用します。
C2 noun /ˈɔːspɪs/

auspice

兆し, 保護
Meaning
A sign, omen, or divine token; also refers to protection or support.
Example
The project was launched under the auspice of the government.
そのプロジェクトは政府の保護のもとで開始されました。
C2 verb /ɪkˈskruːʃieɪt/

excruciate

苦しめる
Meaning
to cause intense pain or suffering
Example
The injury excruciated him with unbearable pain.
その怪我は彼を耐え難い痛みに苦しめました。
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 adjective /ˈæmbjələˌtɔːri/

ambulatory

外来患者
Meaning
Relating to or able to walk; relating to outpatient medical care.
Example
The patient is ambulatory and does not require bed rest.
その患者は外来患者で、安静が必要ありません。
C2 noun /ˈoʊdiəm/

odium

嫌悪
Meaning
general or widespread hatred or disgust directed toward someone as a result of their actions
Example
The scandal brought public odium on the corrupt minister.
スキャンダルは腐敗した大臣に対する公衆の嫌悪を引き起こした。
C2 noun /ˈmɛtələ(r)dʒi/

metallurgy

冶金学
Meaning
The science and technology of metals, including their extraction from ores and their processing.
Example
Metallurgy plays a vital role in industrial development.
冶金学は産業の発展において重要な役割を果たします。
C2 adjective /ˈvɒkətɪv/

vocative

呼格
Meaning
relating to a case in grammar used for directly addressing someone
Example
In Latin, the vocative case is used when directly calling someone by name.
ラテン語では、ボカティブケースは名前で誰かを直接呼びかけるときに使用されます。
C2 noun /ˈdɒɡərəl/

doggerel

低俗な詩
Meaning
Comic or irregular verse, often poorly constructed and lacking in artistic quality.
Example
The poet’s work was dismissed as mere doggerel by the critics.
詩人の作品は批評家によって単なる低俗な詩として却下された。