Impiety
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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 /ɪmˈpæsɪbəl/

impassible

Meaning
Incapable of suffering or feeling pain (used mainly in theological or philosophical contexts).
Example
Some philosophers argue that God is impassible and cannot experience human emotions.
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 adverb /ˌɪnəzˈmʌtʃ/

inasmuch

Meaning
To the extent that; considering that.
Example
Inasmuch as you are their teacher, you should guide them carefully.
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 /ˌɪnkənˈsɪdərəbl/

inconsiderable

Meaning
Too small or unimportant to be worth considering.
Example
The donation was not inconsiderable, though smaller than expected.
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 verb /ˌɪntərˈmɪt/

intermit

Meaning
To suspend or stop for a time; to pause intermittently.
Example
The rain would intermit and then start again.
C2 adjective /ɪnˈklɛmɛnt/

inclement

Meaning
unpleasantly cold, wet, or stormy (usually weather)
Example
The match was canceled due to inclement weather.
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 /ɪnˈɛk.wɪ.tə.bəl/

inequitable

Meaning
Not fair or just; lacking in fairness or equality.
Example
The distribution of resources was inequitable among the workers.
C2 noun /ˈɪrɪtənsi/

irritancy

Meaning
the quality or state of causing irritation; legal or formal invalidation
Example
The constant noise became an irritancy to the neighbors.
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 /ˌɪnkænˈdɛsənt/

incandescent

Meaning
emitting light as a result of being heated; extremely bright or passionate
Example
The incandescent lamp lit up the entire hall.
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 adjective /ˌɪrɪˈkɒnsɪləbl/

irreconcilable

Meaning
impossible to make compatible or bring into harmony; unable to resolve differences
Example
The couple separated due to irreconcilable differences.
C2 adjective /ɪnˈdjuːbɪtəbl/

indubitable

Meaning
Impossible to doubt; unquestionable.
Example
It is indubitable that hard work leads to success.
C2 noun /ɪnˈvɛstɪtʃər/

investiture

Meaning
the formal ceremony of conferring authority, rank, or office
Example
The king held an investiture ceremony for the new knight.
C2 noun /ˈɪnsələns/

insolence

Meaning
rude or disrespectful behavior
Example
The teacher was shocked by the student's insolence.
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 adjective /ɪmˈpɑːlɪtɪk/

impolitic

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

Inauspicious

Meaning
unlucky; showing signs that future success is unlikely; unfavorable
Example
The dark clouds seemed inauspicious for the wedding.
C2 noun /aɪˈkɒnəklæst/

iconoclast

Meaning
A person who attacks or criticizes cherished beliefs, traditions, or institutions.
Example
He was known as an iconoclast who challenged old traditions.
C2 verb /aɪˈdɒləˌtraɪz/

idolatrize

Meaning
To worship idols; to regard with excessive devotion or admiration.
Example
They began to idolatrize the statue as a deity.
C2 adjective /ɪmˈpɛn.ɪ.tənt/

impenitent

Meaning
Not feeling regret or shame about one's actions.
Example
The criminal remained impenitent after the trial.
C2 adjective /ˌɪnɪˈsɛnʃəl/

inessential

Meaning
not necessary or important; not essential
Example
The report removes all inessential details to stay focused.
C2 adjective ɪnˈdɒm.ɪ.tə.bəl

indomitable

Meaning
Impossible to subdue or defeat.
Example
Her indomitable spirit helped her overcome adversity.
C2 adjective /ɪˈrædɪkəbəl/

irradicable

Meaning
not able to be eradicated; impossible to destroy or remove completely
Example
The love of a mother for her child is irradicable.
C2 noun /ˈɪnˌɡreɪt/

ingrate

Meaning
An ungrateful person; someone who shows no appreciation.
Example
He worked hard for his friend, but the ingrate never thanked him.
C2 adjective /ɪnˈsuːpərəbl/

insuperable

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

imprimatur

Meaning
An official license or approval, especially to publish a book.
Example
The book was released with the official imprimatur of the church.
C2 noun /ˌɪn.trəˈɡreʃ.ən/

introgression

Meaning
The transfer of genetic information from one species to another through repeated backcrossing.
Example
Introgression plays a significant role in plant breeding.
C2 adjective /ɪnˈæpt/

Inapt

Meaning
not suitable; inappropriate; unfit
Example
His comment was inapt for the formal meeting.
C2 adjective /ˌɪndɪˈvɜːrtɪbəl/

indivertible

Meaning
Not able to be turned aside or diverted.
Example
The judge's indivertible attention was on the case.
C2 adjective /ɪˈnɪkwɪtəs/

iniquitous

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

inviolable

Meaning
never to be broken, dishonored, or violated
Example
Human rights are considered inviolable in modern democracies.
C2 adjective /ˌɪnˌɑːpərˈtuːn/

inopportune

Meaning
Happening at a bad or inconvenient time.
Example
His call came at the most inopportune moment.
C2 noun /ɪmˈbroʊlioʊ/

imbroglio

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

ingraft

Meaning
To implant or fix deeply, often used in the sense of grafting an idea or quality.
Example
The teacher tried to ingraft good manners in the students.
C2 adjective /ˈɪnfəntaɪl/

infantile

Meaning
characteristic of an infant; childish
Example
His infantile behavior embarrassed everyone at the meeting.
C2 verb /ɪnˈdɒktrɪˌneɪt/

indoctrinate

Meaning
To teach someone to fully accept a set of beliefs or ideas without question.
Example
The regime tried to indoctrinate the youth with propaganda.
C2 verb /ɪmˈpjuːn/

impugn

Meaning
to dispute the truth, validity, or honesty of a statement or motive
Example
The lawyer tried to impugn the credibility of the witness.
C2 verb /ɪˈnjʊər/

inure

Meaning
To become accustomed to something, especially something unpleasant.
Example
Soldiers quickly became inured to the harsh conditions.
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 /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 verb /ɪnˈhjuːm/

inhume

Meaning
to bury a dead body in the ground
Example
They inhumed the warrior with full honors.
C2 noun /ˌɪmpjuˈteɪʃən/

imputation

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

irresolute

Meaning
uncertain or indecisive; lacking determination
Example
He stood irresolute at the crossroads, unsure which path to take.
C2 noun /ɪkˈsɔːr.ə/

Ixora

Meaning
a tropical flowering shrub with clusters of small bright red, orange, or yellow flowers
Example
The bright red ixora bushes lined the pathway to the tropical garden.
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 noun /ɪnˌtɜːrpəˈleɪʃən/

interpolation

Meaning
The act of inserting something into a text or estimating values within a sequence of data.
Example
The scientist used interpolation to predict the missing data points.
C2 adjective /ɪnˈɡlɔːriəs/

inglorious

Meaning
Causing shame or disgrace; not bringing honor or glory.
Example
The army suffered an inglorious defeat.
C2 verb /ɪmˈbruː/

imbrue

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

inveterate

Meaning
having a long-established habit, activity, or interest that is unlikely to change
Example
He is an inveterate reader who spends hours in the library every day.
C2 adjective /ˌɪrɪˈprəʊtʃəbl̩/

irreproachable

Meaning
Beyond criticism; faultless.
Example
The judge was known for his irreproachable integrity.
C2 noun /ɪˌledʒ.əˈbɪl.ə.ti/

Illegibility

Meaning
the quality of being impossible or difficult to read; unclear writing or print
Example
The doctor's handwriting was famous for its illegibility among the pharmacy staff.
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 /ˌɪnɪkˈspiːdiənt/

inexpedient

Meaning
Not advisable, suitable, or practical in the circumstances.
Example
It would be inexpedient to invest without proper research.
C2 noun /ˈaɪ.ərn.wʊd/

Ironwood

Meaning
a hard, dense wood from various trees; also the tree itself that produces small flowers
Example
The ironwood tree blooms with tiny white flowers.
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 /ɪnˈfɜːrnəl/

infernal

Meaning
relating to hell; extremely troublesome or annoying
Example
The workers complained about the infernal noise from the construction site.
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 /ˌɪn.təˈvɛn.ʃə.nɪ.zəm/

interventionism

Meaning
Government policy of active involvement in economic affairs.
Example
The central bank's interventionism helped stabilize inflation.
C2 noun /ˌɪnəməˈrɑːtə/

inamorata

Meaning
A woman with whom someone is in love; a female lover.
Example
He wrote a poem dedicated to his inamorata.
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 adjective /ɪˈræsɪbl/

irascible

Meaning
Easily angered; quick-tempered.
Example
His irascible nature often got him into trouble.
C2 adjective /ˌɪnˈekspɜːrt/

inexpert

Meaning
not skilled or experienced; lacking expertise
Example
The inexpert handling of the machine caused several mistakes.
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 /ɪnˈsɪnəˌreɪt/

incinerate

Meaning
to burn something completely until it is reduced to ashes
Example
The city decided to incinerate the medical waste for safety.
C2 noun /ˌɪn.ɪˈbraɪ.ə.ti/

inebriety

Meaning
the state of being drunk or intoxicated
Example
His frequent inebriety led to the loss of his job.
C2 noun /ˌɪnkrɪˈdjuːləti/

incredulity

Meaning
the state of being unwilling or unable to believe something
Example
She looked at him with incredulity after hearing the strange story.
C2 noun /ˈaɪdɪl/

idyll

Meaning
An extremely happy, peaceful, or picturesque episode or scene, often idealized.
Example
Their honeymoon was an idyll on a tropical island.
C2 adjective /ɪmˈpɪəriəs/

imperious

Meaning
Arrogantly domineering or overbearing.
Example
Her imperious tone made it hard for others to argue.
C2 noun /ˌɪnjuːˈɛndəʊ/

innuendo

Meaning
An allusive or oblique remark or hint, typically a suggestive or disparaging one.
Example
The manager's innuendo was directed towards his competitor.
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 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 /ɪnˈdʒɛnjuəs/

ingenuous

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

invitor

Meaning
a person who invites someone to an event, meeting, or place
Example
The invitor greeted all the guests warmly at the entrance.
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 (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 /ˌɪrɪˈtriːvəbl/

irretrievable

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

interstice

Meaning
a small space that lies between things
Example
Light filtered through the narrow interstices of the wall.
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 adjective /ɪnˈɛstɪməbl/

inestimable

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

incorporeal

Meaning
lacking a physical body; not composed of matter; intangible
Example
Ghosts are often described as incorporeal beings.
C2 noun /ɪnˈhɪərəns/

inherence

Meaning
The state of being an essential or permanent part of something.
Example
The inherence of risk is part of every business venture.
C2 noun /ˌɪnˌkeɪpəˈbɪləti/

incapability

Meaning
lack of ability or power to do something; inability or incompetence
Example
His incapability to manage the team led to serious problems.
C2 noun /ɪˈnɪkwɪti/

iniquity

Meaning
Immoral or grossly unfair behavior.
Example
The dictator's regime was marked by corruption and iniquity.
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 adjective /ɪnˈsɛndiˌɛri/

incendiary

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

irradiance

Meaning
the quality of shining brightly; the intensity of light falling on a surface
Example
The irradiance of the sun at noon was overwhelming.
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 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 verb /ˌɪmpɔːrˈtuːn/

importune

Meaning
To ask someone persistently or pressingly for something
Example
The child importuned his mother for a new toy.
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 adjective /ˌɪnfɪnɪˈtɛsɪməl/

infinitesimal

Meaning
Extremely small in size or amount; so tiny as to be almost negligible.
Example
The error was so infinitesimal that it didn’t affect the results.
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 noun /ˌɪmbəˈsɪləti/

imbecility

Meaning
Extreme foolishness, stupidity, or weakness of mind.
Example
The plan was abandoned due to its sheer imbecility.
C2 noun /ˈɪd.i.ə.si/

Idiocy

Meaning
extremely stupid behavior or actions; foolishness
Example
The decision to ignore safety protocols was pure idiocy that endangered everyone.
C2 noun /ˌɪmpəˈtjuːəsəti/

impetuosity

Meaning
The quality of being rash or impulsive.
Example
His impetuosity often got him into trouble.
C2 noun /ˌɪntərpəˈzɪʃən/

interposition

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.
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 /ɪnˈvaɪələt/

inviolate

Meaning
free from violation, injury, or desecration; kept safe and untouched
Example
The ancient temple remained inviolate for centuries.
C2 noun /ˌɪn.strəˈmɛn.təl.ɪst/

instrumentalist

Meaning
A person who plays a musical instrument.
Example
The instrumentalist played a beautiful solo on the violin.
C2 adjective /ɪnˈskruːtəbl̩/

inscrutable

Meaning
impossible to understand or interpret
Example
His inscrutable expression made it hard to know what he was thinking.
C2 adjective /ˈɪkθiɪk/

ichthyic

Meaning
Relating to or resembling fish.
Example
The artist's painting had an ichthyic quality.
C2 noun /aɪər/

ire

Meaning
intense anger or rage
Example
The new policy provoked the ire of the employees.
C2 noun /ɪnˈtræn.sɪ.dʒəns/

intransigence

Meaning
Refusal to change one's views or to agree about something.
Example
The negotiations failed due to the intransigence of both parties.
C2 adjective /ˌɪnsəˈluːbriəs/

insalubrious

Meaning
Unhealthy or not conducive to well-being.
Example
They moved out of the insalubrious neighborhood for the sake of their health.
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 noun /ɪmˌpɜːrtərbəˈbɪləti/

imperturbability

Meaning
The quality of being calm and not easily disturbed or upset.
Example
Her imperturbability during the crisis impressed everyone.
C2 adjective /ˌɪmpɪˈkjuːniəs/

impecunious

Meaning
Having little or no money; poor.
Example
He grew up in an impecunious family.
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 noun /ˈaɪ.lət/

islet

Meaning
A very small island.
Example
The fishermen rested on a tiny islet before continuing their journey.
C2 adjective /ˌɪrɪˈfrændʒɪbəl/

irrefrangible

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

inveigle

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

Inharmonious

Meaning
lacking harmony; discordant in sound; not in tune
Example
The inharmonious sounds from the broken piano made everyone cover their ears.
C2 adjective /ɪˈmɒdɪst/

immodest

Meaning
lacking humility or decency; excessively proud or improper
Example
His immodest remarks offended the audience.
C2 adjective ɪˈnɛfəbl

ineffable

Meaning
Too great or extreme to be expressed or described in words.
Example
The beauty of the landscape was ineffable.