tenebrous
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C2 adjective /ˈtɛnɪbrəs/

tenebrous

Meaning
dark, shadowy, or obscure
Example
The cave was damp and tenebrous, filled with eerie sounds.
C2 noun /ˈæpəplɛksi/

apoplexy

Meaning
A sudden loss of consciousness or control due to stroke or extreme anger.
Example
The old man nearly had apoplexy when he heard the shocking news.
C2 adjective /ˈmɛtrɪkəl/

metrical

Meaning
Relating to or composed in a regular rhythmic pattern of beats or meter, especially in poetry.
Example
The poet carefully followed metrical rules in his verses.
C2 adjective /ɪˈmɛrɪtəs/

emeritus

Meaning
having retired but allowed to retain their title as an honor
Example
He is a professor emeritus at the university.
C2 noun /ˌmɪsæprɪˈhɛnʃən/

misapprehension

Meaning
a mistaken belief or misunderstanding
Example
There is a common misapprehension about the causes of the disease.
C2 verb /ˈæktʃueɪt/

actuate

Meaning
to put into action or motion; to motivate or activate
Example
The engineer actuated the machine with a simple switch.
C2 adjective /ˌɛlɪˈfæntaɪn/

elephantine

Meaning
Huge, clumsy, or resembling an elephant in size or movement.
Example
The man moved with an elephantine grace.
C2 verb /ˌriː.kəˈnɔɪ.tər/

reconnoiter

Meaning
to make a preliminary inspection or survey, especially of an area for military or strategic purposes
Example
The soldiers reconnoitered the area before advancing.
C2 verb /drɔːl/

drawl

Meaning
to speak in a slow, lazy way with prolonged vowel sounds
Example
He tends to drawl when he is tired.
C2 adjective /bɒmˈbæstɪk/

bombastic

Meaning
using pompous or inflated language with little meaning
Example
The professor’s bombastic lecture impressed no one.
C2 noun /ˈfuːləri/

foolery

Meaning
Silly or foolish behavior or actions.
Example
His constant foolery made the meeting hard to take seriously.
C2 verb /ˈdʌv.teɪl/

dovetail

Meaning
to fit or combine perfectly together
Example
Her plans dovetail perfectly with our goals.
C2 verb /ˈbeɪɪŋ/

baying

Meaning
making a loud, prolonged barking or howling sound, especially of dogs
Example
The baying of the hounds echoed through the forest.
C2 noun /pəˈlæv.ər/

palaver

Meaning
prolonged and idle discussion; fuss or unnecessary talk
Example
After much palaver, they finally agreed on the plan.
C2 noun /ˌdiːlɛkˈteɪʃən/

delectation

Meaning
great pleasure or delight
Example
She read the story aloud for the delectation of her friends.
C2 adjective /ˌɪrɪˈprəʊtʃəbl̩/

irreproachable

Meaning
Beyond criticism; faultless.
Example
The judge was known for his irreproachable integrity.
C2 noun /mjuːˈlætoʊ/

mulatto

Meaning
an outdated and now offensive term historically used to describe a person of mixed white and Black ancestry
Example
The word 'mulatto' is now considered outdated and offensive.
C2 noun /ˈtʃaɪ.nə bɑːks/

China box

Meaning
a small evergreen shrub with tiny white fragrant flowers
Example
The China box plant produced clusters of small white flowers.
C2 adjective /ˈmɒtli/

motley

Meaning
Made up of different, often incongruous or diverse elements.
Example
The festival attracted a motley crowd of artists, musicians, and tourists.
C2 noun /ˈdrʌmɪt/

Drumet

Meaning
a small drum used in military or marching bands
Example
The drummer played a steady beat on the drumet during the parade.
C2 noun /ˈmælɪt fɪʃ/

Mallet fish

Meaning
A marine fish with a hard shell-like covering, found in coastal waters
Example
The mallet fish is known for its unique protective shell covering.
C2 adjective /səˈdʒɛstəbəl/

suggestible

Meaning
easily influenced by the suggestions of others
Example
Children are highly suggestible and may believe what they are told.
C2 noun /kɒnˌtek.stʃu.ə.laɪˈzeɪ.ʃən/

contextualization

Meaning
The process of placing something in its proper context or setting to understand it better.
Example
Contextualization of historical events helps students understand them better.
C2 adjective /ˈek.wə.bəl/

Equable

Meaning
calm and even-tempered; not easily disturbed
Example
He maintained an equable temperament throughout the crisis.
C2 verb /preɪt/

prate

Meaning
to talk foolishly or at tedious length about something
Example
He would prate endlessly about his minor achievements.
C2 adjective /ˌkɑːmənˈsɛnsɪkəl/

commonsensical

Meaning
based on or showing sound practical judgment; sensible
Example
It was commonsensical to carry an umbrella on a rainy day.
C2 adjective /ˈkɒrɪdʒəbl/

corrigible

Meaning
capable of being corrected or improved
Example
The student's mistakes were corrigible with practice.
C2 adjective /ˌhɜːrkjʊˈliːən/

herculean

Meaning
Requiring great strength or effort; very difficult to perform.
Example
It was a herculean task to rebuild the city after the disaster.
C2 verb /rɛtʃ/

retch

Meaning
to make the sound and movement of vomiting without bringing anything up
Example
The smell of spoiled food made him retch violently.
C2 noun /ˈbɜːrsər/

bursar

Meaning
An official in a school or college responsible for financial affairs.
Example
The bursar approved the budget for the new library.
C2 noun /ˈɑːr.bɪ.trɑːʒ/

arbitrage

Meaning
The simultaneous buying and selling of securities in different markets to take advantage of differing prices.
Example
Investors use arbitrage to make profits in global markets.
C2 noun /ˈsuːθˌseɪər/

soothsayer

Meaning
a person who claims to predict the future
Example
The king consulted a soothsayer before going to war.
C2 adjective /ləˈkɒnɪk/

laconic

Meaning
using very few words; concise to the point of seeming rude or mysterious
Example
His laconic reply ended the conversation quickly.
C2 noun /sɒp/

sop

Meaning
a concession or appeasement to pacify someone; also a piece of bread dipped in liquid
Example
The manager offered a bonus as a sop to the unhappy employees.
C2 verb /breɪ/

bray

Meaning
To make a loud, harsh sound like a donkey.
Example
The donkey began to bray loudly in the field.
C2 adjective /ˌɪnsəˈprɛsəbl/

insuppressible

Meaning
That cannot be suppressed or restrained.
Example
She had an insuppressible urge to laugh during the ceremony.
C2 noun /ˈnɪk.næk/

knickknack

Meaning
A small decorative object, especially in a house.
Example
The shelf was full of little knickknacks collected from their travels.
C2 noun /ˌsɪnjuˈɒsɪti/

sinuosity

Meaning
The quality or state of being winding, curving, or having many turns.
Example
The sinuosity of the river made navigation challenging.
C2 adjective /ˈɑːsɪˌfaɪd/

ossified

Meaning
Turned into bone or become rigid; unwilling to change.
Example
The company had an ossified management structure that resisted innovation.
C2 noun /ˈprɪvɪti/

privity

Meaning
A close, private, or special relationship; in law, the direct connection between parties to a contract.
Example
There was no privity of contract between the supplier and the customer.
C2 adjective /ɪnˈvʌlnərəbl/

invulnerable

Meaning
Impossible to harm, damage, or defeat.
Example
The fortress was thought to be invulnerable to attack.
C2 noun /ˌiː.tiˈɒ.lə.dʒi/

etiology

Meaning
the cause or origin of a disease or condition
Example
Doctors are studying the etiology of the new virus.
C2 adjective /ˌɛnkəˈmiːæstɪk/

encomiastic

Meaning
Expressing praise; laudatory.
Example
The book was filled with encomiastic remarks about the author.
C2 noun /ænˈtɪpədiːz/

antipodes

Meaning
places on opposite sides of the Earth; also refers to things that are direct opposites
Example
Australia and Britain are often considered antipodes of each other.
C2 noun /dɪˈstɪlər/

distiller

Meaning
A person or company that makes alcoholic drinks or purified liquids by distillation.
Example
The distiller introduced a new brand of whiskey last year.
C2 adjective/adverb /ˌæ.prəˈpoʊ/

apropos

Meaning
Appropriate to the situation; relevant. As an adverb, it means 'with reference to' or 'regarding'.
Example
His comments were not apropos of the discussion.
C2 verb /rɪˈsɪnd/

rescind

Meaning
to revoke, cancel, or repeal a law, order, or agreement
Example
The company decided to rescind the job offer.
C2 adjective /vərˈmɪkjələr/

vermicular

Meaning
having a shape or appearance like a worm; worm-like
Example
The artist used a vermicular design to decorate the border of the manuscript.
C2 verb /dɪˈlæpɪdeɪt/

dilapidate

Meaning
To cause something, especially a building, to fall into ruin or disrepair.
Example
The abandoned house began to dilapidate over the years.
C2 noun /niːˈɒlədʒɪzəm/

neologism

Meaning
A newly coined word or expression.
Example
The internet has given rise to many neologisms like 'selfie' and 'hashtag'.
C2 adjective /ɪnˈsɛnʃənt/

insentient

Meaning
Lacking perception, consciousness, or sensation.
Example
The rock is an insentient object with no awareness.
C2 noun /ˈbiː.təl nʌt/

Betel-nut

Meaning
seed of the areca palm tree, often chewed as a stimulant
Example
Betel-nut is commonly chewed in many South Asian countries.
C2 adjective /ˈproʊtiən/

protean

Meaning
tending or able to change frequently or easily; versatile
Example
She is a protean artist who experiments with many styles.
C2 noun /æbˈsɪʒən/

abscission

Meaning
The natural detachment of parts of a plant, typically leaves or fruit.
Example
The autumn season is marked by the abscission of leaves from trees.
C2 noun /əbˈstɛtrɪks/

obstetrics

Meaning
The branch of medicine dealing with childbirth and care of women giving birth.
Example
She is studying obstetrics to become a specialist in childbirth.
C2 noun /ˌfrɪdʒɪˈdɛːriəm/

frigidarium

Meaning
a large cold pool in ancient Roman baths used for cooling off after hot baths
Example
The ruins of the Roman frigidarium are still visible today.
C2 noun /ˈlɪbərəlɪst/

liberalist

Meaning
a person who supports liberal ideas and principles
Example
He is a well-known liberalist advocating human rights.
C2 noun /ˈkwɔːrtoʊ/

quarto

Meaning
A book size resulting from folding each printed sheet into four leaves (eight pages).
Example
The library has rare Shakespeare quartos.
C2 noun əˈdrɔɪt.nəs

adroitness

Meaning
Cleverness or skill, especially in using the hands or mind; skillful dexterity.
Example
His adroitness in negotiations secured the deal.
C2 noun /dɪsˈkwaɪɪtjuːd/

disquietude

Meaning
A state of uneasiness, anxiety, or restlessness.
Example
His constant pacing showed his inner disquietude.
C2 noun /ˌnjuːməˈreɪʃən/

numeration

Meaning
the action or process of counting or assigning numbers
Example
The teacher explained the basics of numeration to the students.
C2 adjective /ɜːrˈbeɪn/

urbane

Meaning
showing polished manners, refinement, and sophistication
Example
He was an urbane gentleman who charmed everyone at the party.
C2 noun /ˌmælˈoʊdər/

malodor

Meaning
An unpleasant smell; bad odor.
Example
The garbage bin gave off a terrible malodor.
C2 noun /tiːˈtoʊtəlɪzəm/

teetotalism

Meaning
the practice or principle of abstaining completely from alcoholic drinks
Example
He practiced teetotalism throughout his life.
C2 verb /ɪˈfeɪsɪŋ/

effacing

Meaning
erasing or making oneself inconspicuous; to remove or diminish in significance
Example
She kept effacing herself during the meeting so that others could shine.
C2 noun /ˈtrɪmnəs/

trimness

Meaning
the quality of being neat, orderly, or slender and well-proportioned
Example
Her room’s trimness reflected a habit of putting everything back in its place.
C2 noun /kɒn.tɪˈɡjuː.ɪ.ti/

contiguity

Meaning
the state of being in direct contact or next to each other
Example
The contiguity of the two countries facilitates trade.
C2 adjective /ɪnˈklɛmɛnt/

inclement

Meaning
unpleasantly cold, wet, or stormy (usually weather)
Example
The match was canceled due to inclement weather.
C2 noun /ˈlɪbərˌtiːn/

libertine

Meaning
A person who behaves without moral principles, especially in sexual matters.
Example
The novel depicted the reckless life of a libertine in 18th century France.
C2 verb /əˈsɪdɪfaɪ/

acidify

Meaning
to make something acidic or more acidic
Example
Farmers worry that pollution will acidify the soil.
C2 verb /ɪkˈstruːd/

extrude

Meaning
to force something out through a small opening; to shape by pushing material through a mold
Example
The factory extrudes plastic pipes using modern machines.
C2 noun /ˈnɛkrəˌmænsər/

necromancer

Meaning
a person who practices necromancy; a wizard or magician who claims to communicate with the dead
Example
The villagers feared the old necromancer who lived at the edge of the forest.
C2 noun /feɪnt/

feint

Meaning
a deceptive or pretended movement, especially in fighting or sports
Example
The boxer made a feint to the left before striking to the right.
C2 noun /sɛkˈstɛt/

sextet

Meaning
a group of six people playing music or a piece written for six performers
Example
The jazz sextet filled the small club with a warm, layered sound.
C2 adjective /ˈlaɪbələs/

libelous

Meaning
containing or constituting a false published statement that damages a person's reputation
Example
The article was found to be libelous and had to be retracted.
C2 adjective /ˌdɪskəmˈbɑːbjuleɪtɪd/

discombobulated

Meaning
confused and disoriented; feeling unsettled
Example
She looked discombobulated after hearing the unexpected news.
C2 noun /ˌperəˈreɪʃən/

peroration

Meaning
The concluding part of a speech, often intended to inspire or persuade.
Example
The politician's peroration left the audience applauding enthusiastically.
C2 noun /ˈmɪsɪv/

missive

Meaning
a written message, especially a formal or official letter
Example
He sent a long missive to the governor.
C2 adjective /ˌæpəˈplɛktɪk/

apoplectic

Meaning
Extremely angry; furious.
Example
He was apoplectic when he heard about the unfair decision.
C2 noun /ˈbræɡərt/

braggart

Meaning
a person who boasts about achievements or possessions
Example
No one liked him because he was such a braggart.
C2 noun /ˌɪnvəˈlɪdɪti/

invalidity

Meaning
the state of being invalid, legally void, or lacking force or validity
Example
The court ruled that the contract suffered from invalidity.
C2 adjective /ˈəʊ.dər.əs/

Odorous

Meaning
having a strong smell; fragrant; aromatic
Example
The garden was filled with odorous flowers.
C2 noun /ˈɑːm.lət/

Armlet

Meaning
a band worn around the upper arm as an ornament
Example
The traditional dancer wore golden armlets that gleamed in the spotlight.
C2 noun /fluːk/

fluke

Meaning
A stroke of luck; an unexpected piece of good fortune.
Example
Winning the lottery was a complete fluke.
C2 noun /əˈstɪɡmətɪzəm/

astigmatism

Meaning
An eye defect causing blurred vision due to irregular curvature of the cornea or lens.
Example
She wears glasses to correct her astigmatism.
C2 noun /ˈtʃaɪ.nə roʊz/

China-rose

Meaning
a tropical flowering plant with large, showy flowers in various colors
Example
The bright red China-rose flowers decorated the entrance of the house.
C2 noun /ˌfaɪ.təʊˈkem.ɪ.kəlz/

phytochemicals

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.
C2 noun /ˈdɒkɪt/

docket

Meaning
a list or schedule of cases to be tried in a court or items to be done
Example
The judge reviewed the docket before starting the session.
C2 noun /ˈmɪsəl/

missal

Meaning
a book containing the texts used in the Catholic Mass throughout the year
Example
The priest read from the missal during the ceremony.
C2 verb /bɪˈdræɡəl/

bedraggle

Meaning
to make something wet, dirty, and untidy by dragging it through mud or water
Example
The children came home bedraggled after playing in the rain.
C2 noun /ˈmɪlk pɒt/

Milk-pot

Meaning
a container specifically used for storing or serving milk
Example
She poured fresh milk from the milk-pot into her glass.
C2 noun /ˈtʌmbrəl/

tumbrel

Meaning
A two-wheeled cart, especially one used during the French Revolution to carry prisoners to the guillotine.
Example
The prisoners were carried to the square in a wooden tumbrel.
C2 verb /bɪlk/

bilk

Meaning
To cheat or defraud someone of money or rights.
Example
The scammer tried to bilk elderly people out of their savings.
C2 verb /ɪnˈtɜːrpəˌleɪt/

interpolate

Meaning
To insert something, often words, into a text or conversation; to estimate values between known data points.
Example
The editor interpolated a missing paragraph into the manuscript.
C2 noun /ˈfɔːrˌpiːk/

forepeak

Meaning
The compartment in the forward part of a ship, often used for storage.
Example
The sailors stored extra ropes in the forepeak.
C2 noun /ˈsɒfɪzəm/

sophism

Meaning
a clever but misleading argument; fallacious reasoning
Example
The politician's speech was full of sophism designed to mislead voters.
C2 adjective /ˈneɪtl/

natal

Meaning
Relating to birth or the place of birth.
Example
She returned to her natal village after many years.
C2 verb /ˌdɪsɪnˈtɜːr/

disinter

Meaning
to dig up something buried, especially a body
Example
The archaeologists disinterred ancient remains from the site.
C2 noun /ˌdɪspjuːˈteɪʃən/

disputation

Meaning
a formal debate or argument
Example
The disputation between the two scholars lasted for hours.
C2 verb /ˌmɪsæprɪˈhɛnd/

misapprehend

Meaning
to misunderstand or misinterpret something
Example
He misapprehended the teacher’s instructions and did the task incorrectly.
C2 adjective /beɪˈkoʊniən/

baconian

Meaning
Relating to the philosopher Francis Bacon or his method of scientific reasoning.
Example
The researcher followed a Baconian approach to observation and experimentation.
C2 verb /bɪˈtroʊð/

betroth

Meaning
To formally promise to marry someone; to engage.
Example
He was betrothed to the princess at a young age.
C2 noun /ˈjɪərlɪŋ/

yearling

Meaning
an animal that is one year old, especially a horse
Example
The farmer sold the yearling at the livestock market.
C2 noun/adjective /ˈtraɪkʌlər/

tricolor

Meaning
A flag with three colors; consisting of three colors.
Example
The French tricolor is one of the most famous national flags in the world.
C2 noun /ˈpraɪəri/

priory

Meaning
a small monastery or convent governed by a prior or prioress
Example
The old priory was converted into a museum.
C2 adjective /krɪˈpʌskjʊlər/

crepuscular

Meaning
relating to twilight or active during twilight
Example
Bats are crepuscular animals, most active at dawn and dusk.
C2 adjective /ˈtɜːrbɪd/

turbid

Meaning
Cloudy, opaque, or thick with suspended matter; confused or obscure in meaning.
Example
The river water became turbid after the heavy rains.
C2 noun /ˈspuːnərɪzəm/

spoonerism

Meaning
A verbal error in which the initial sounds of words are swapped to create a humorous effect.
Example
He made a spoonerism by saying 'queer old dean' instead of 'dear old queen'.
C2 noun /ˈmaɪtər/

miter

Meaning
a tall, pointed hat worn by bishops; also a type of joint made between two pieces of material
Example
The bishop placed the miter on his head during the ceremony.
C2 adjective /bɪˈfʌdld/

befuddled

Meaning
confused, unable to think clearly
Example
He looked befuddled after hearing the complex instructions.
C2 noun /ˈfʌriər/

furrier

Meaning
A person who prepares or deals in furs.
Example
The furrier displayed fine coats in his shop.
C2 noun /fez/

Fez

Meaning
a cone-shaped red hat with a tassel, traditionally worn by men in some Middle Eastern countries
Example
The traditional costume included a red fez with a black tassel.
C2 noun /ˈmɛtələ(r)dʒi/

metallurgy

Meaning
The science and technology of metals, including their extraction from ores and their processing.
Example
Metallurgy plays a vital role in industrial development.
C2 verb /ɪnˈvaɪərən/

environ

Meaning
to surround or enclose; to encircle
Example
Mountains environ the small valley.
C2 noun /ˌmæk.ɪˈneɪ.ʃən/

Machination

Meaning
a clever scheme or artful plot, usually with evil intent; crafty designing or plotting
Example
The villain's machinations were finally exposed.
C2 noun /ˌhaɪdroʊˈfoʊbiə/

hydrophobia

Meaning
Extreme or irrational fear of water; historically, another name for rabies.
Example
After being bitten by a stray dog, the man was treated for hydrophobia.
C2 adjective /ˌdaɪəˈbɒlɪk/

diabolic

Meaning
Extremely evil or cruel; characteristic of the devil.
Example
The villain devised a diabolic scheme.
C2 verb /trænsˈfɪɡjʊər/

transfigure

Meaning
To transform the outward appearance or form, often in a way that elevates or glorifies.
Example
The artist managed to transfigure simple clay into a beautiful sculpture.
C2 noun /ˈbɜːrɡər/

burgher

Meaning
A citizen of a town, typically a member of the wealthy middle class.
Example
The burgher was respected as a prosperous merchant in the city.
C2 noun /ˈbʊljən/

bullion

Meaning
Gold or silver in bulk before being coined or made into jewelry.
Example
The bank stores gold bullion in its vaults.
C2 verb /prɪmp/

primp

Meaning
To spend time making minor adjustments to one's appearance.
Example
She primped in front of the mirror before the party.