efficacious
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C2 adjective /ˌɛf.ɪˈkeɪ.ʃəs/

efficacious

Meaning
Successful in producing a desired or intended result; effective.
Example
The vaccine proved highly efficacious in preventing infections.
C2 noun /ɪˈpɪsəl/

epistle

Meaning
A letter, especially a formal or didactic one; often used for letters in the New Testament.
Example
He wrote a long epistle to his friend about his travels.
C2 noun /ˈiːsθiːt/ or /ˈɛsθiːt/

aesthete

Meaning
A person who has a special appreciation of art and beauty.
Example
The aesthete admired the subtle details of the painting.
C2 noun /ɪkˈskrɛsəns/

excrescence

Meaning
An abnormal outgrowth or lump, often considered unattractive.
Example
The building was considered an excrescence on the landscape.
C2 adjective /ˌɒbsəˈlɛsnt/

obsolescent

Meaning
Becoming outdated or on the way to becoming obsolete.
Example
The obsolescent technology could not compete with modern devices.
C2 adjective /ˈɒfɪʃ/

offish

Meaning
Unfriendly, distant, or reserved in manner.
Example
He seemed offish at the party and avoided most conversations.
C2 verb /ɡɜːrd/

gird

Meaning
to encircle with a belt or band; to prepare for action
Example
The knight girded his sword before battle.
C2 verb /ˌɛvəˈnɛs/

evanesce

Meaning
To disappear gradually; to fade away.
Example
The mist began to evanesce as the sun rose higher.
C2 noun /ˈseɪ.li.əns/

salience

Meaning
The quality of being particularly noticeable or important; prominence.
Example
The salience of the issue was highlighted in the debate.
C2 verb, noun /ˈkweɪvər/

quaver

Meaning
To shake or tremble in speaking, typically through nervousness or emotion.
Example
Her voice quavered as she spoke before the crowd.
C2 noun /ˌmɪsədˈvɛntʃər/

misadventure

Meaning
An unlucky accident, mishap, or unfortunate event.
Example
He broke his leg during a skiing misadventure.
C2 noun /ˌmjuːtəˈbɪləti/

mutability

Meaning
The quality of being changeable or capable of change.
Example
The mutability of fashion trends makes it hard to keep up.
C2 verb /ɪnˈdaɪt/

indite

Meaning
To write or compose (literary or formal works).
Example
The poet indited a heartfelt sonnet.
C2 verb /ɪnˈveɪ/

inveigh

Meaning
To speak or write about something with great hostility and criticism.
Example
He inveighed against the corruption in government.
C2 noun /ˈsælvoʊ/

salvo

Meaning
A simultaneous discharge of guns or release of bombs; a sudden outburst of cheers or applause.
Example
The soldiers fired a salvo to honor the fallen general.
C2 adjective /ˈrɛstɪv/

restive

Meaning
unable to stay still or silent; restless and impatient
Example
The crowd grew restive as they waited for the concert to begin.
C2 adjective /ˌhɪstriˈɒnɪk/

histrionic

Meaning
Overly dramatic or theatrical in behavior or style.
Example
Her histrionic reaction to the small problem surprised everyone.
C2 noun /sɛnˈtjʊəriən/

centurion

Meaning
A commander of a unit of one hundred soldiers in the ancient Roman army.
Example
The centurion led his men into battle with courage.
C2 adjective /ɪnˈseɪʃiət/

insatiate

Meaning
impossible to satisfy; always wanting more
Example
He had an insatiate desire for power.
C2 adjective /trænsˈfjuːzəbl̩/

transfusible

Meaning
capable of being transfused, especially referring to blood or fluids
Example
Only transfusible blood types are used in the hospital.
C2 adjective /ˈfʊl.dʒənt/

fulgent

Meaning
Shining brightly; dazzling.
Example
The fulgent stars lit up the night sky.
C2 noun /ˈrɛkwiəm/

requiem

Meaning
A mass, music, or ceremony for the repose of the souls of the dead.
Example
The choir performed a requiem in memory of the late leader.
C2 verb /ˈɪntərˌdɪkt/

interdict

Meaning
to prohibit or forbid something by authoritative order, often by law or decree
Example
The court moved to interdict the sale of the illegal goods.
C2 adjective /ˈɜːrsaɪn/

ursine

Meaning
Relating to or resembling a bear.
Example
The man’s ursine strength amazed everyone.
C2 noun /ˈfriːˌmeɪsən/

freemason

Meaning
A member of an international fraternity known as Freemasonry, focused on moral and spiritual values.
Example
His grandfather was a respected freemason in the community.
C2 noun /ˌsɪɡnɪfɪˈkeɪʃən/

signification

Meaning
the meaning or sense conveyed by a word, action, or symbol
Example
The signification of the gesture was misunderstood.
C2 verb /ˈdɒdə/

dodder

Meaning
To move in a weak and unsteady way, especially due to old age.
Example
The old man doddered across the street with a cane.
C2 verb /ˈpɒntɪfɪkeɪt/

pontificate

Meaning
to speak or act in a pompous or dogmatic way; to officiate as a pontiff
Example
He pontificated on the importance of education for over an hour.
C2 adjective /ɪˈnjʊərd/

inured

Meaning
Accustomed to something, especially something unpleasant.
Example
After years of hardship, she was inured to suffering.
C2 noun /ˌdɪpsəˈmeɪniæk/

dipsomaniac

Meaning
A person with an uncontrollable craving for alcoholic drinks.
Example
The novel portrayed the tragic downfall of a dipsomaniac who lost everything to alcohol.
C2 noun /ˈmæk.rəˌkɒz.əm/

macrocosm

Meaning
The whole universe considered as a large, complex system; a large-scale representation of something.
Example
The macrocosm of the universe reflects the microcosm of human life.
C2 noun /ˈlɪθəˌtaɪp/

lithotype

Meaning
a printing surface or type made for lithography
Example
The printer used a lithotype to produce multiple copies of the design.
C2 noun /əˈnæθəmə/

anathema

Meaning
something or someone intensely disliked or strongly condemned
Example
Violence is anathema to her peaceful nature.
C2 adjective /ˌaɪ.kə.nəˈklæs.tɪk/

iconoclastic

Meaning
Characterized by attacking or rejecting cherished beliefs, traditions, or established values.
Example
Her iconoclastic views challenged the conventional wisdom of the industry.
C2 adjective /ˈspaɪnəs/

spinous

Meaning
Having spines or thorn-like projections
Example
The spinous cactus was difficult to handle without gloves.
C2 noun /loʊd/

lode

Meaning
A rich source of something, often a vein of valuable metal in the earth.
Example
The miners discovered a rich lode of silver.
C2 noun ˌfjuːmɪˈɡeɪʃən

fumigation

Meaning
The practice of disinfecting or purifying an area using gas or smoke.
Example
Fumigation is an effective method to control pest infestations.
C2 adjective /ˈpɜːrviəs/

pervious

Meaning
Allowing water, air, or other substances to pass through; permeable.
Example
The soil here is pervious to rainwater.
C2 verb /ˈæmbl/

amble

Meaning
To walk at a slow, relaxed pace.
Example
They amble through the park on Sunday mornings.
C2 noun /məˈnɒkrəsi/

monocracy

Meaning
A system of government by a single person; autocracy.
Example
The nation suffered under decades of monocracy.
C2 adjective /ˈveɪpərəs/

Vaporous

Meaning
consisting of vapor; vague or insubstantial
Example
The morning air was filled with vaporous mist.
C2 verb /əˈmælɡəmeɪt/

amalgamate

Meaning
to combine or unite to form one organization or structure; to merge
Example
The two companies decided to amalgamate their operations.
C2 adverb, adjective /ˈɡrætɪs/ or /ˈɡreɪtɪs/

gratis

Meaning
Without charge; free of cost.
Example
The drinks at the event were provided gratis.
C2 adjective /ɪˈnɪmɪkəl/

inimical

Meaning
tending to obstruct or harm; unfriendly or hostile
Example
The policy was inimical to the country's economic growth.
C2 adjective /ˌdɛfəˈrɛnʃəl/

deferential

Meaning
Showing or expressing respect and high regard.
Example
He was always deferential toward his teachers.
C2 adjective /ˈdɔːnt.ləs/

dauntless

Meaning
Showing fearlessness and determination; brave and resolute.
Example
The dauntless soldier fought against all odds.
C2 noun/verb /læˈsuː/

lasso

Meaning
a rope with a loop used to catch animals; to catch with such a rope
Example
The cowboy lassoed the horse quickly.
C2 noun əˌdʌl.təˈreɪ.ʃən

adulteration

Meaning
The action of making something poorer in quality by the addition of another substance.
Example
Adulteration of food is a serious health risk.
C2 noun /ˌmæləˈdɪkʃən/

Malediction

Meaning
A magical word used to invoke a curse; an evil spell
Example
The witch uttered a terrible malediction upon her enemies.
C2 noun /ˈdʒæz.mɪn/

Jesmine

Meaning
a climbing shrub with fragrant white or yellow flowers
Example
The jasmine flowers filled the garden with their sweet fragrance.
C2 noun (plural) /maɪˈnjuːʃiiː/

minutiae

Meaning
the small, precise, or trivial details of something
Example
The lawyer focused on the minutiae of the contract.
C2 noun /ˈdɛkəˌlɔːɡ/

decalogue

Meaning
The Ten Commandments in the Bible; a set of fundamental rules or principles.
Example
The priest gave a sermon on the importance of the Decalogue.
C2 adjective /ˌoʊvərˈwiːnɪŋ/

overweening

Meaning
excessively arrogant or prideful
Example
His overweening pride cost him many friends.
C2 noun /ˈhæŋ.kər.ɪŋ/

hankering

Meaning
a strong desire or craving for something.
Example
She had a hankering for chocolate late at night.
C2 noun /ˈmʌs.tərd liːf/

Mustard leaf

Meaning
green leafy vegetable from the mustard plant; edible leaves used in cooking
Example
We cooked mustard leaf with fish in a traditional Bengali curry.
C2 noun /ˈpjuːdʒɪlɪst/

pugilist

Meaning
A professional or skilled boxer.
Example
The pugilist entered the ring with confidence.
C2 adjective /dʒərˈmeɪn/

germane

Meaning
Relevant and appropriate to the subject being considered.
Example
Her comments were not germane to the discussion.
C2 noun /ˌtɛliˈɒlədʒi/

teleology

Meaning
the explanation of phenomena by the purpose they serve rather than by cause
Example
Aristotle is often associated with the concept of teleology in philosophy.
C2 noun /ˈbɛlfri/

belfry

Meaning
A bell tower, especially one attached to a church or building.
Example
The church belfry housed a large bronze bell.
C2 noun /taɪð/

tithe

Meaning
A tenth part of one’s income or produce, often given as a religious offering.
Example
He gave a tithe of his earnings to the church.
C2 adjective /ˈɛrənt/

errant

Meaning
behaving wrongly or straying from the proper course or standards
Example
The teacher disciplined the errant student.
C2 noun /ˈkaɪrəˌmænsi/

chiromancy

Meaning
The practice of predicting the future by interpreting the lines on the palms of hands; palmistry.
Example
The old woman practiced chiromancy and told fortunes for travelers.
C2 adjective /ˈsloʊθfəl/

slothful

Meaning
Lazy, idle, and unwilling to work.
Example
She was too slothful to get out of bed early.
C2 noun/adjective /ɪˈmɒliənt/

emollient

Meaning
a substance that softens or soothes the skin
Example
She used an emollient cream to treat her dry skin.
C2 verb /əˈsweɪdʒ/

assuage

Meaning
To make an unpleasant feeling less intense; to ease or relieve.
Example
The kind words helped assuage her anxiety.
C2 adjective /ˈdɒdərɪŋ/

doddering

Meaning
Weak, shaky, or unsteady, especially due to old age.
Example
The doddering professor struggled to climb the stairs.
C2 noun /ɪnˈsɪpiəns/

incipience

Meaning
the beginning or initial stage of something
Example
The project was still in its incipience when funding was approved.
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 noun /ˌhjuː.mɪ.fɪˈkeɪ.ʃən/

humification

Meaning
The process of organic matter decomposition to form humus in soil.
Example
Humification enhances soil structure and fertility.
C2 verb /θrɛʃ/

thresh

Meaning
to separate grain from the plant by beating or by using a machine
Example
Farmers used machines to thresh the wheat after harvest.
C2 noun /ˈhaɪərəˌɡlɪf/

hieroglyph

Meaning
A picture or symbol used in ancient writing systems, especially Egyptian writing.
Example
The walls of the temple were covered in hieroglyphs.
C2 adjective /njuːˈtoʊniən/

newtonian

Meaning
relating to the laws of motion and gravitation formulated by Sir Isaac Newton
Example
The scientist explained the Newtonian laws of motion.
C2 noun /trəˈveɪl/

travail

Meaning
Painful or laborious effort; suffering or hardship.
Example
After years of travail, she finally completed her degree.
C2 noun /ˈkɒntrətɑː̃/

contretemps

Meaning
an unexpected and unfortunate event or disagreement; a minor dispute
Example
There was a small contretemps between the two colleagues during the meeting.
C2 noun /floʊ/

floe

Meaning
a large sheet of floating ice
Example
The polar bears rested on the ice floe.
C2 noun /kənˈkɔːrdəns/

concordance

Meaning
Agreement; also an alphabetical index of the principal words in a book.
Example
There is a strong concordance between the two reports.
C2 adjective /ˈnɒmɪk/

nomic

Meaning
Relating to laws, rules, or systems.
Example
The philosopher discussed the nomic necessity of natural laws.
C2 adjective /ˈpɛndjʊləs/

pendulous

Meaning
hanging down loosely; drooping
Example
The pendulous fruit weighed down the branch.
C2 adverb /ˌðeərˈwɪð/

Therewith

Meaning
together with that; in addition to that
Example
He handed me the contract and the pen therewith.
C2 adjective /ˌaɪdəˈlɑːtrɪəs/

idolatrious

Meaning
Excessively devoted or reverent towards idols or false gods.
Example
The ancient tribe was known for its idolatrious practices.
C2 verb ˈɪn.kʌl.keɪt

inculcate

Meaning
Instill an attitude, idea, or habit by persistent instruction; to teach and impress by frequent repetitions.
Example
Parents should inculcate good values in their children.
C2 noun /ˈeɪ.pi.ˌɛr.i/

apiary

Meaning
A place where beehives are kept, especially for commercial purposes.
Example
The farmer built a new apiary to produce organic honey.
C2 adjective /ˈhoʊm.spʌn/

homespun

Meaning
Simple and unsophisticated; made at home rather than in a factory.
Example
She wore a homespun dress to the village festival.
C2 noun /ˈdʒæɡ.ər.i/

Jaggary

Meaning
unrefined sugar made from sugarcane or palm sap; a traditional sweetener
Example
My grandmother uses jaggery instead of white sugar in her recipes.
C2 noun /kəmˈpɒz.ɪ.tər/

Compositor

Meaning
a person who arranges type for printing or creates musical compositions
Example
The compositor carefully arranged the text for the newspaper.
C2 noun /ˌkæv.əlˈkeɪd/

cavalcade

Meaning
a formal procession of people riding on horses or in vehicles
Example
The king’s arrival was marked by a grand cavalcade.
C2 noun /ˈɪndələns/

indolence

Meaning
Avoidance of activity or exertion; laziness.
Example
His indolence kept him from finishing the project on time.
C2 verb /dɪsˈɡɔːrdʒ/

disgorge

Meaning
to discharge or pour out; to vomit; to give up reluctantly
Example
The broken pipe disgorged water all over the floor.
C2 verb /kɔːk/

calk

Meaning
To make a boat or ship watertight by filling seams or cracks.
Example
The workers calked the seams of the old boat to prevent leaks.
C2 noun /ˈθɛspiən/

thespian

Meaning
An actor or actress; relating to drama or theater.
Example
The festival was filled with talented thespians from across the country.
C2 noun /ˌproʊɪˈbɪʃənɪst/

prohibitionist

Meaning
A person who supports or advocates prohibition, especially of alcohol.
Example
The prohibitionist campaigned against the sale of liquor in the town.
C2 noun

Kinsfolk

C2 noun /ˈɑːrkeɪndʒəl/

archangel

Meaning
A high-ranking angel, often considered a chief messenger or leader among angels.
Example
Michael is often depicted as the most powerful archangel.
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 noun /ˈvɛrɪti/

verity

Meaning
a true principle or belief; the state of being true
Example
The verity of his statement was confirmed by evidence.
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 /ˌkɒntrəpəˈzɪʃən/

contraposition

Meaning
the act of placing two things in opposition for contrast or comparison
Example
The contraposition of the two theories highlighted their differences.
C2 adjective /ˌriːkruːˈdɛsənt/

recrudescent

Meaning
reviving or breaking out again after a period of abatement
Example
Recrudescent tensions threatened the fragile ceasefire.
C2 noun /ˈsɛnʃəns/

sentience

Meaning
The capacity to feel, perceive, or experience subjectively.
Example
Many argue that animals possess sentience.
C2 noun /ˈriːdʒənt/

regent

Meaning
a person who rules in place of a monarch when the monarch is absent or too young
Example
The prince acted as regent until the king came of age.
C2 noun /ˌæbnɪˈɡeɪʃən/

abnegation

Meaning
the act of renouncing or rejecting something, especially self-denial
Example
The monk’s life was one of complete abnegation of worldly pleasures.
C2 noun /rɪˈsɪdɪˌvɪzəm/

recidivism

Meaning
The tendency of a convicted criminal to reoffend or relapse into criminal behavior.
Example
The government introduced new programs to reduce recidivism among former inmates.
C2 noun /rɪˈmɒnstrəns/

remonstrance

Meaning
A forceful protest or objection.
Example
The workers’ remonstrance against unfair treatment was ignored.
C2 verb /ˈwiːdəl/

wheedle

Meaning
to persuade or coax someone by using flattery or smooth talk
Example
She managed to wheedle extra pocket money from her father.
C2 adjective /rɪˈsplɛndənt/

resplendent

Meaning
Shining brilliantly; dazzling in appearance or effect
Example
The bride looked resplendent in her wedding gown.
C2 noun /ɪˈluːmɪnənt/

illuminant

Meaning
A substance or device that produces light.
Example
The lamp acted as an illuminant in the dark cave.
C2 noun /sɛnˈsɔːrɪəm/

sensorium

Meaning
The part of the brain or mind concerned with the reception and interpretation of sensory stimuli.
Example
The patient’s sensorium was clouded after the accident.
C2 noun /ˈsɪnjuː/

sinew

Meaning
A tendon; figuratively, the source of strength, power, or resilience.
Example
The sinews in his arms stood out as he lifted the heavy box.
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 /ˈfiːtɪd/

foetid

Meaning
having an offensive, unpleasant smell
Example
The foetid smell from the garbage made it hard to breathe.
C2 adjective /ˈhɔːrtətɪv/

hortative

Meaning
Giving strong encouragement or urging.
Example
The teacher gave a hortative speech to motivate the students before the exam.
C2 noun /ˈdaɪɡræf/

digraph

Meaning
A pair of letters representing a single sound, such as 'sh' in 'ship'.
Example
In the word 'phone', the letters 'ph' form a digraph.
C2 noun /ˈhaɪdrə/

hydra

Meaning
a many-headed serpent in Greek mythology; a problem that seems to grow worse when attempts are made to solve it
Example
Corruption is like a hydra, hard to defeat completely.
C2 noun /ˌɪnvəˈkeɪʃən/

invocation

Meaning
the act of calling upon a higher power for help, blessing, or inspiration
Example
The ceremony began with an invocation to the gods.
C2 adjective /ˈɡɔːdi/

gaudy

Meaning
excessively showy or flashy, often in a tasteless way
Example
She wore a gaudy necklace that clashed with her elegant dress.
C2 noun /næˈteɪʃən/

natation

Meaning
The act or sport of swimming.
Example
She took lessons in natation to improve her swimming skills.
C2 noun /ˌænəlˈdʒiːziə/

analgesia

Meaning
The inability to feel pain while still conscious.
Example
The doctor induced analgesia before performing the procedure.
C2 adjective /ˈʌŋk.tʃu.əs/

unctuous

Meaning
Excessively flattering or ingratiating; oily in texture.
Example
His unctuous tone made everyone uncomfortable.
C2 noun /meɪs/

Mase

Meaning
spice obtained from the reddish seed covering of the nutmeg seed
Example
A pinch of mace adds warmth to the dessert.
C2 adjective /daɪˈdæktɪk/

didactic

Meaning
Intended to teach, often with a moral lesson.
Example
The novel is not just entertaining but also didactic in nature.
C2 noun ˈsɒmnələns

somnolence

Meaning
A state of drowsiness or sleepiness; inclination to sleep.
Example
The somnolence after a heavy meal made it hard to concentrate.