inchoative
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C2 adjective /ɪnˈkoʊətɪv/

inchoative

Meaning
relating to the beginning of something; in an initial stage
Example
The poet used inchoative expressions to depict the dawn of creation.
C2 adjective /ɪmˈperɪʃəbəl/

Imperishable

Meaning
not subject to decay; lasting forever; eternal
Example
The imperishable beauty of classical art continues to inspire generations.
C2 verb /ɪnˈɡreɪʃiˌeɪt/

ingratiate

Meaning
To gain favor or approval by deliberate effort, often in a flattering way.
Example
She tried to ingratiate herself with her boss by complimenting him often.
C2 noun /ɪmˈbroʊlioʊ/

imbroglio

Meaning
An extremely confused, complicated, or embarrassing situation.
Example
The political imbroglio lasted for months without resolution.
C2 noun /ˈaɪ.lət/

islet

Meaning
A very small island.
Example
The fishermen rested on a tiny islet before continuing their journey.
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 /ɪnˈtɛɡ.jʊ.mənt/

integument

Meaning
A natural outer covering, such as skin, shell, or rind.
Example
The snake sheds its integument as it grows.
C2 noun /ˌaɪ.diˈeɪ.ʃən/

ideation

Meaning
The process of forming and developing new ideas or concepts through creative thinking and brainstorming.
Example
The team engaged in ideation sessions to generate new product ideas.
C2 adjective /ɪˈnjʊərd/

inured

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

intestate

Meaning
Having died without leaving a valid will.
Example
She died intestate, so her assets were distributed by law.
C2 noun /ɪnˈsaɪzər/

incisor

Meaning
a narrow-edged tooth at the front of the mouth, adapted for cutting
Example
The dentist noted that his upper left incisor was chipped.
C2 adjective /ˌɪməˈmɔːriəl/

immemorial

Meaning
Extending back beyond memory or record; ancient.
Example
The tradition has been followed since time immemorial.
C2 verb /ɪmˈpɛnd/

impend

Meaning
to be about to happen; to loom threateningly
Example
Dark clouds suggested that a storm was impeding.
C2 verb /ɜːrk/

irk

Meaning
to annoy or irritate someone
Example
It irks me when people are late without calling.
C2 verb /ɪnˈfætʃueɪt/

infatuate

Meaning
to inspire with an intense but short-lived passion or admiration
Example
He was infatuated with her beauty.
C2 noun /aɪər/

ire

Meaning
intense anger or rage
Example
The new policy provoked the ire of the employees.
C2 adjective /ɪnˈkɒŋɡruənt/

incongruent

Meaning
Not in harmony or keeping with the surroundings or other aspects.
Example
His casual outfit looked incongruent at the formal dinner.
C2 adjective /ˌɪnkəmˈbʌstəbl/

incombustible

Meaning
Not capable of catching fire or burning.
Example
This material is incombustible and safe for construction.
C2 noun /ˈɪn.dɪ.dʒəns/

indigence

Meaning
a state of extreme poverty or destitution
Example
The charity was founded to help people living in indigence.
C2 adjective /ˌɪntəˈrɒɡətəri/

interrogatory

Meaning
expressed in the form of a question; relating to questioning
Example
The lawyer’s interrogatory tone made the witness uncomfortable.
C2 adjective /ɪmˈplaɪəbl/

impliable

Meaning
Capable of being implied or suggested.
Example
The meaning of the statement is not directly clear but is impliable from the context.
C2 noun /ɪnˈtɜːrmənt/

interment

Meaning
The act of burying a dead body in a grave or tomb.
Example
The interment took place at the family cemetery.
C2 adjective /ɪmˈplækəbl/

implacable

Meaning
unable to be appeased, calmed, or pacified
Example
The soldiers faced an implacable enemy who refused to surrender.
C2 verb /ɪnˈsteɪt/

instate

Meaning
To set up in position, office, or authority.
Example
The board decided to instate her as the new director.
C2 noun /ˌɪdiəˈsɪŋkrəsi/

idiosyncrasy

Meaning
A distinctive or peculiar characteristic, habit, or mannerism unique to an individual.
Example
One of her idiosyncrasies was humming while working.
C2 adjective /ɪnˈsɛndiˌɛri/

incendiary

Meaning
designed to cause fires or stir up conflict
Example
The politician’s incendiary remarks angered the crowd.
C2 noun /ˈaɪdlər/

idler

Meaning
A person who avoids work or spends time lazily.
Example
He was known as an idler who wasted his days.
C2 noun /ˈɪl.i.æd/

iliad

Meaning
An ancient Greek epic poem attributed to Homer, describing the events of the Trojan War.
Example
Students studied the Iliad to understand Greek mythology and heroism.
C2 adjective /ɪnˈfɜːrnəl/

infernal

Meaning
relating to hell; extremely troublesome or annoying
Example
The workers complained about the infernal noise from the construction site.
C2 adverb /ˈɪntʃmiːl/

inchmeal

Meaning
Gradually, little by little.
Example
The old castle fell inchmeal into ruin.
C2 adjective /ɪnˈɡreɪʃiˌeɪtɪŋ/

ingratiating

Meaning
Charming or flattering in a way intended to gain favor.
Example
His ingratiating smile made everyone trust him quickly.
C2 adjective /ˈɪm.pi.əs/

Impious

Meaning
irreligious; lacking reverence for religion; blasphemous
Example
The impious act shocked the religious community.
C2 verb /ˈɪndjʊˌreɪt/

indurate

Meaning
To harden or make something physically or emotionally tough.
Example
Years of hardship indurated his spirit.
C2 noun /ɪnˌtɛl.ɪˈdʒɛntsi.ə/

intelligentsia

Meaning
The group of people engaged in intellectual and cultural pursuits in a society.
Example
The intelligentsia played a key role in shaping public opinion.
C2 noun /ɪmˈpjuːɪsəns/

impuissance

Meaning
inability to take effective action; helplessness
Example
The government’s impuissance in the face of crisis frustrated the people.
C2 verb /ˌɪntərˈsiːd/

intercede

Meaning
to act or plead on behalf of someone in difficulty or trouble; to intervene between parties to help resolve a dispute
Example
She interceded with the teacher to give her brother another chance.
C2 verb /ˌɪntərˈpoʊz/

interpose

Meaning
To place or insert between one thing and another; to intervene in a situation.
Example
He quickly interposed himself between the fighters to stop the quarrel.
C2 noun /ˌɪntərˈlɒkjətər/

interlocutor

Meaning
a person who takes part in a conversation or dialogue
Example
She was a skilled interlocutor during the debate.
C2 adjective /ɪnˈsɛnseɪt/

insensate

Meaning
lacking physical sensation or empathy; without feeling or sensitivity
Example
The dictator's insensate cruelty shocked the world.
C2 adjective /ˌɪndɪˈsɜːrnəbl/

indiscernible

Meaning
Impossible or difficult to see, notice, or distinguish.
Example
The difference between the two shades was almost indiscernible.
C2 verb /ɪmˈbruː/

imbrue

Meaning
To stain, especially with blood.
Example
His hands were imbrued with blood after the battle.
C2 adjective /ˌɪnɪˈsɛnʃəl/

inessential

Meaning
not necessary or important; not essential
Example
The report removes all inessential details to stay focused.
C2 noun /ɪnˈɛrənsi/

inerrancy

Meaning
the belief or quality of being free from error; absolute correctness
Example
Some religious groups strongly affirm the inerrancy of their sacred texts.
C2 adjective /ˌɪrɪˈtriːvəbl/

irretrievable

Meaning
impossible to recover or regain
Example
The documents were lost in an irretrievable way after the fire.
C2 adjective /ˌɪntərˈlɒkjətəri/

interlocutory

Meaning
Given during the course of a legal action, not final but temporary or provisional.
Example
The judge issued an interlocutory order to maintain the status quo until the hearing.
C2 adjective /ɪnˈsuːpərəbl/

insuperable

Meaning
Impossible to overcome or surpass.
Example
The team faced insuperable challenges during the expedition.
C2 noun /ɪmˈpaɪ.ə.ti/

Impiety

Meaning
lack of piety or reverence, especially for a god; disrespect or irreverence toward religious matters
Example
His impiety shocked the religious community when he mocked their sacred ceremonies.
C2 adjective /ɪmˈpɑːlɪtɪk/

impolitic

Meaning
Unwise or imprudent; not showing good judgment.
Example
It would be impolitic to criticize them openly.
C2 verb /ɪˈmjʊər/

immure

Meaning
to confine or enclose someone against their will
Example
The prisoner was immured in a dark cell.
C2 adjective ˌɪn.ɪ.fɪˈkeɪ.ʃəs

inefficacious

Meaning
Not producing any or the desired effect; ineffective.
Example
The treatment was inefficacious in curing the disease.
C2 verb /ˌɪntərˈlɒk/

interlock

Meaning
to fit or connect together securely so that two or more things are joined
Example
The gears interlock to ensure smooth movement of the machine.
C2 adjective /ˌɪrɪˈlɪdʒəs/

irreligious

Meaning
Indifferent or hostile to religion
Example
Some people in the community consider him irreligious because he never attends religious services.
C2 adjective /ɪnˈkɒntɪnənt/

incontinent

Meaning
lacking control over urination or defecation; lacking self-restraint
Example
The patient was incontinent after surgery.
C2 noun /aɪˈoʊtə/

iota

Meaning
An extremely small amount.
Example
He did not show an iota of fear.
C2 adjective ˌɪm.pəˈtɜː.bə.bəl

imperturbable

Meaning
Unable to be upset or excited; not easily disturbed.
Example
His imperturbable nature made him a great leader.
C2 noun /ɪmp/

imp

Meaning
a small mischievous devil or sprite; a playful troublemaker
Example
The child was acting like a little imp, hiding his toys everywhere.
C2 adjective /ˌɪlˈneɪ.tʃəd/

ill-natured

Meaning
Having a bad or unpleasant character; unkind or malicious.
Example
He made an ill-natured remark about his colleague.
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 adjective /ɪnˈvɪdiəs/

invidious

Meaning
likely to arouse resentment, envy, or anger in others
Example
The manager's invidious remarks created tension among the employees.
C2 noun /ɪmˈprɑːvɪdəns/

improvidence

Meaning
Lack of foresight or care for future needs.
Example
His improvidence led to financial difficulties.
C2 verb /ɪnˈtɜːr/

inter

Meaning
To bury a dead body in the ground.
Example
They decided to inter the soldier with full honors.
C2 verb /ˈɪməleɪt/

immolate

Meaning
To kill or sacrifice, especially by burning.
Example
The protesters threatened to immolate themselves in front of the building.
C2 verb /ɪmˈpjuːt/

impute

Meaning
to attribute a fault or responsibility to someone
Example
They imputed the company's success to good leadership.
C2 verb /ɪnˈveɪɡəl/

inveigle

Meaning
To persuade someone to do something by deception or flattery.
Example
She inveigled him into signing the contract.
C2 adjective /ˌɪntərˈniːsaɪn/

internecine

Meaning
Relating to conflict within a group, often causing mutual destruction.
Example
The internecine conflict weakened the organization from within.
C2 adjective /ɪˈmɪsəbl/

immiscible

Meaning
Describes liquids that do not mix together.
Example
Oil and water are immiscible liquids.
C2 adjective /ˌɪn.trəˈmjʊə.rəl/

intramural

Meaning
Occurring within the walls of a single institution, especially a school or college.
Example
The college organizes intramural sports competitions every semester.
C2 adjective /ˌɪmpɪˈkjuːniəs/

impecunious

Meaning
Having little or no money; poor.
Example
He grew up in an impecunious family.
C2 adjective /ɪˈlɪbərəl/

illiberal

Meaning
Opposed to liberal principles; restricting freedom of thought or behavior.
Example
The government was criticized for its illiberal policies.
C2 noun /ɪmˈpɒs.tʃər/

Imposture

Meaning
the practice of deceiving others by pretending to be someone else; fraudulent deception
Example
The elaborate imposture lasted for months before investigators uncovered the truth.
C2 adjective /ɪˈrɛfrəɡəbəl/

irrefragable

Meaning
Impossible to refute, deny, or break
Example
The lawyer presented irrefragable evidence that proved his client’s innocence.
C2 adjective /aɪˈsɒ.krə.nəs/

isochronous

Meaning
Occurring at equal time intervals; in unison or synchrony.
Example
The pendulum swings are isochronous, repeating at equal intervals.
C2 adjective /ˌɪnsəˈpɔːrtəbl̩/

insupportable

Meaning
Too extreme or difficult to be endured.
Example
The heat was insupportable during the long journey.
C2 adjective /ɪnˈdʒɛnjuəs/

ingenuous

Meaning
Innocent, naive, and unsuspecting; showing childlike simplicity and sincerity.
Example
Her ingenuous smile revealed her genuine kindness.
C2 adjective /ˈɪnmoʊst/

inmost

Meaning
Situated at the very heart or deepest part; most private or secret.
Example
She revealed her inmost thoughts to her closest friend.
C2 adjective /ˌɪndaɪˈdʒestəbəl/

Indigestible

Meaning
difficult or impossible to digest; hard to process in the stomach
Example
The old bread became hard and indigestible.
C2 adjective /ɪnˈdɛkərəs/

indecorous

Meaning
Not in keeping with good taste and propriety; improper.
Example
His indecorous behavior shocked the audience.
C2 adjective /ɪmˈpruːdənt/

imprudent

Meaning
Not showing care for the consequences of an action.
Example
It was imprudent to drive in such stormy weather.
C2 adjective /ˌɪrɪˈdjuːsəbl/

irreducible

Meaning
impossible to reduce or simplify further
Example
The fraction 3/7 is irreducible.
C2 adjective /ɪnˈɛstɪməbl/

inestimable

Meaning
Too great or valuable to be measured or estimated.
Example
Her contribution to the project was of inestimable value.
C2 noun /ɪnˈtɛnʃən/

intension

Meaning
The internal content of a concept; the set of attributes implied by a word or phrase.
Example
The intension of the word 'dog' includes being a mammal and domesticated.
C2 noun /ɪnˈsɪɡniə/

insignia

Meaning
A badge or symbol that shows rank, position, or membership.
Example
The soldier proudly wore the insignia of his regiment.
C2 verb /ˈɪmprɪkeɪt/

imprecate

Meaning
To utter a curse or invoke evil upon someone.
Example
The old woman imprecated her enemies with dark words.
C2 noun /ˈaɪ.səˌbɑːr/

isobar

Meaning
A line on a weather map connecting points of equal atmospheric pressure.
Example
The meteorologist explained how isobars indicate wind speed and direction.
C2 noun /ˈɪmpjʊdəns/

impudence

Meaning
Rude and disrespectful behavior.
Example
The student's impudence shocked the entire class.
C2 adjective /ɪnˈsɪpiənt/

incipient

Meaning
in an initial stage; beginning to develop
Example
The incipient storm made the sky turn dark and heavy.
C2 noun /ˈɪntərˌveɪl/

intervale

Meaning
A low-lying tract of land along a river, usually fertile and flat.
Example
The farmers cultivated crops on the lush intervale by the river.
C2 adjective /ɪnˈvʌlnərəbl/

invulnerable

Meaning
Impossible to harm, damage, or defeat.
Example
The fortress was thought to be invulnerable to attack.
C2 verb /ˌɪnkəˈpæsɪteɪt/

incapacitate

Meaning
to deprive someone or something of the ability or strength to function
Example
The severe injury incapacitated the player for the rest of the season.
C2 noun /ˈɪntərˌloʊpər/

interloper

Meaning
A person who becomes involved in a situation or place where they are not wanted.
Example
He felt like an interloper at the private family gathering.
C2 adjective /ɪnˈkɒrɪdʒəbəl/

incorrigible

Meaning
incapable of being corrected, improved, or reformed
Example
He is an incorrigible optimist who never loses hope.
C2 adjective /ɪˈnɪkwɪtəs/

iniquitous

Meaning
grossly unfair and morally wrong
Example
Slavery was one of the most iniquitous practices in history.
C2 noun /ɪnˈfrækʃən/

infraction

Meaning
A violation or breach of a rule, law, or agreement.
Example
The student was punished for a minor infraction of the school rules.
C2 adjective /ˌaɪsəʊˈθɜːrməl/

isothermal

Meaning
Having or maintaining equal or constant temperature.
Example
The experiment was conducted under isothermal conditions.
C2 noun /ɪmˈpruː.dəns/

Imprudence

Meaning
the quality of being imprudent; lack of care for consequences; recklessness
Example
His financial imprudence led to bankruptcy within just two years.
C2 noun /ɪnˈkɒnstənsi/

inconstancy

Meaning
The quality of changing frequently or being unreliable.
Example
The inconstancy of the weather makes planning difficult.
C2 noun /ɪnˈtɒksɪkənt/

intoxicant

Meaning
a substance, especially alcohol or a drug, that causes intoxication
Example
Alcohol is the most commonly used intoxicant in many cultures.
C2 adjective /ɪnˈvaɪələt/

inviolate

Meaning
free from violation, injury, or desecration; kept safe and untouched
Example
The ancient temple remained inviolate for centuries.
C2 verb ɪmˈbaɪb

imbibe

Meaning
Absorb or assimilate ideas or knowledge. To drink or take in.
Example
He tried to imbibe the wisdom from his mentor.
C2 noun /ˌɪkθiˈɒlədʒɪst/

ichthyologist

Meaning
A scientist who studies fish.
Example
The ichthyologist discovered a new species of fish in the river.
C2 adjective /ˈɪmənənt/

immanent

Meaning
existing or operating within; inherent
Example
He believed that moral values are immanent in human nature.
C2 adjective /aɪˈdɒlətrəs/

idolatrous

Meaning
Excessively admiring or worshipping someone or something as an idol.
Example
The king was criticized for his idolatrous devotion to wealth.
C2 noun /ˈɪn.tɪ.ɡreɪ.tɪv dɪˈpləʊ.mə.si/

integrative diplomacy

Meaning
A diplomatic approach that seeks to combine or coordinate different elements, interests, or parties into a unified whole.
Example
Integrative diplomacy strengthens alliances.
C2 adjective /ɪmˈpælpəbəl/

impalpable

Meaning
unable to be felt by touch; difficult to grasp or understand
Example
There was an impalpable sense of fear in the room.
C2 noun /ˌɪnkəˈpæsəti/

incapacity

Meaning
the lack of ability, power, or fitness to do something
Example
His mental incapacity prevented him from making important decisions.
C2 noun /ˌɪmpjuˈteɪʃən/

imputation

Meaning
an accusation or attribution of blame
Example
The politician denied the imputation of corruption.
C2 adjective /ˌɪrɪˈfrændʒɪbəl/

irrefrangible

Meaning
Not to be broken, violated, or infringed
Example
The constitution guarantees certain irrefrangible rights to every citizen.
C2 noun /ˌɪmprəˈpraɪəti/

impropriety

Meaning
Failure to observe standards of honesty or modesty; improper behavior.
Example
The politician was accused of financial impropriety.
C2 adjective /ˌɪɡ.nəˈmɪn.i.əs/

ignominious

Meaning
Marked by shame, disgrace, or humiliation.
Example
The team suffered an ignominious defeat in the finals.
C2 verb /ɪmˈpeɪl/

impale

Meaning
to pierce or fix something with a sharp object
Example
The knight was impaled by the enemy’s spear.
C2 noun /ˌɪnkænˈteɪʃən/

incantation

Meaning
a series of words used as a magic spell or charm
Example
The wizard chanted an incantation to summon the spirits.
C2 verb /aɪˈtɪnəˌreɪt/

itinerate

Meaning
To travel from place to place, usually for the purpose of work or preaching.
Example
The missionary itinerated throughout the region to spread the message.
C2 noun /ˈɪntəˌkrɒpɪŋ/

intercropping

Meaning
The agricultural practice of cultivating two or more crops simultaneously in the same field to maximize land use efficiency and improve soil health.
Example
Intercropping can help improve soil fertility and pest control.
C2 noun (compound/erroneous entry) /ɪnˈɛksərəbl ɑːrmi/

inexorableinexorablearmy

Meaning
This appears to be a corrupted or concatenated form; interpreted as 'inexorable army' — an unstoppable or relentless force.
Example
The rebels feared the inexorable army approaching their stronghold.
C2 adjective /ɪnˈklɛmɛnt/

inclement

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

itinerant

Meaning
Traveling from place to place, especially for work or duty.
Example
The itinerant teacher moved from village to village to educate children.
C2 noun /ɪnˈtɛmpərəns/

intemperance

Meaning
Lack of moderation or self-control, especially with drinking or eating.
Example
His intemperance in drinking ruined his health.
C2 noun /ɪnˈɡrætɪˌtjuːd/

ingratitude

Meaning
Lack of gratitude; failure to show thanks or appreciation.
Example
His ingratitude hurt her feelings after all she had done for him.
C2 adjective /ˌɪnɪkˈstɛnsəbl/

inextensible

Meaning
Not capable of being stretched or extended.
Example
This rope is made of an inextensible material.
C2 noun /ˌɪnkænˈdɛsəns/

incandescence

Meaning
the emission of light from a hot object; brilliance
Example
The incandescence of the candle filled the dark room.
C2 noun /ɪmˌpɜːrtərbəˈbɪləti/

imperturbability

Meaning
The quality of being calm and not easily disturbed or upset.
Example
Her imperturbability during the crisis impressed everyone.