inherence
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C2 noun /ɪnˈhɪərəns/

inherence

inherencia
Meaning
The state of being an essential or permanent part of something.
Example
The inherence of risk is part of every business venture.
La inherencia del riesgo es parte de cada aventura empresarial.
C2 adjective /ɪmˈprɒvɪdənt/

improvident

imprudente
Meaning
Not having or showing foresight; spending wastefully or without thought for the future.
Example
His improvident habits left him with no savings.
Sus hábitos imprudentes lo dejaron sin ahorros.
C2 adjective /ɪnˈsɛnʃənt/

insentient

insensible
Meaning
Lacking perception, consciousness, or sensation.
Example
The rock is an insentient object with no awareness.
La roca es un objeto insensible sin conciencia.
C2 adjective /ɪˈnɪmɪkəl/

inimical

hostil / adverso
Meaning
tending to obstruct or harm; unfriendly or hostile
Example
The policy was inimical to the country's economic growth.
La política era hostil al crecimiento económico del país.
C2 noun /ɪnˈvaɪtər/

invitor

invitador
Meaning
a person who invites someone to an event, meeting, or place
Example
The invitor greeted all the guests warmly at the entrance.
El invitador saludó cordialmente a los invitados en la entrada.
C2 noun /ɪnˈtɛmpərəns/

intemperance

intemperancia
Meaning
Lack of moderation or self-control, especially with drinking or eating.
Example
His intemperance in drinking ruined his health.
Su intemperancia al beber arruinó su salud.
C2 adjective /ɪnˈvʌlnərəbl/

invulnerable

invulnerable
Meaning
Impossible to harm, damage, or defeat.
Example
The fortress was thought to be invulnerable to attack.
Se pensaba que la fortaleza era invulnerable al ataque.
C2 adjective /aɪˈdɒlətrəs/

idolatrous

idólatra
Meaning
Excessively admiring or worshipping someone or something as an idol.
Example
The king was criticized for his idolatrous devotion to wealth.
El rey fue criticado por su devoción idólatra hacia la riqueza.
C2 adjective /ɪˈmɒdərət/

immoderate

excesivo
Meaning
excessive; beyond reasonable limits
Example
He has an immoderate love for sweets.
Él tiene un amor excesivo por los dulces.
C2 noun /ˈɪnfəmi/

infamy

felicidad
Meaning
the state of being well known for some bad quality or deed
Example
His name will live in infamy for the crimes he committed.
No pudo ocultar su felicidad cuando recibió el premio.
C2 adjective /ˌɪrɪˈfrændʒɪbəl/

irrefrangible

irrefrenable
Meaning
Not to be broken, violated, or infringed
Example
The constitution guarantees certain irrefrangible rights to every citizen.
La constitución garantiza ciertos derechos irrefrenables a cada ciudadano.
C2 adjective ˌɪn.ɪ.fɪˈkeɪ.ʃəs

inefficacious

ineficaz
Meaning
Not producing any or the desired effect; ineffective.
Example
The treatment was inefficacious in curing the disease.
El tratamiento fue ineficaz en curar la enfermedad.
C2 adjective /ˌɪmpɪˈkjuːniəs/

impecunious

pobre
Meaning
Having little or no money; poor.
Example
He grew up in an impecunious family.
Creció en una familia pobre.
C2 noun /ˌɪmprɪˈmɑːtər/

imprimatur

imprimátur
Meaning
An official license or approval, especially to publish a book.
Example
The book was released with the official imprimatur of the church.
El libro fue lanzado con el imprimátur oficial de la iglesia.
C2 noun /ˌɪnkrɪˈdjuːləti/

incredulity

incredulidad
Meaning
the state of being unwilling or unable to believe something
Example
She looked at him with incredulity after hearing the strange story.
Ella lo miró con incredulidad después de escuchar la extraña historia.
C2 noun /ˈɪrɪtənsi/

irritancy

irritación
Meaning
the quality or state of causing irritation; legal or formal invalidation
Example
The constant noise became an irritancy to the neighbors.
El ruido constante se convirtió en una irritación para los vecinos.
C2 noun /ɪnˈsaɪzər/

incisor

incisivo
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.
El dentista notó que su incisivo superior izquierdo estaba astillado.
C2 adjective /ˌɪnkəˈməʊdiəs/

incommodious

incómodo
Meaning
Uncomfortably small, cramped, or inconvenient.
Example
We had to stay in an incommodious room during the trip.
Tuvimos que quedarnos en una habitación incómoda durante el viaje.
C2 noun /ˈaɪ.səˌbɑːr/

isobar

isóbara
Meaning
A line on a weather map connecting points of equal atmospheric pressure.
Example
The meteorologist explained how isobars indicate wind speed and direction.
El meteorólogo explicó cómo las isóbaras indican la velocidad y dirección del viento.
C2 adjective /ˈɪl bred/

Ill-bred

maleducado
Meaning
lacking good manners; rude; showing poor upbringing
Example
His ill-bred behavior shocked everyone at the dinner party.
Su conducta maleducada dejó a todos sorprendidos en la cena.
C2 noun /ˌɪndɛnˈteɪʃən/

indentation

sangría
Meaning
A space left at the beginning of a line of text; a notch or deep recess on a surface.
Example
The teacher asked the students to use proper indentation in their essays.
El profesor pidió a los estudiantes que usaran una sangría adecuada en sus ensayos.
C2 noun /ˌɪlɪbəˈræləti/

illiberality

ilicitud
Meaning
The quality of being illiberal; lack of tolerance or generosity.
Example
The illiberality of the new laws alarmed the citizens.
La iliberalidad de las nuevas leyes alarmó a los ciudadanos.
C2 noun /ˌɪnkænˈteɪʃən/

incantation

encantación
Meaning
a series of words used as a magic spell or charm
Example
The wizard chanted an incantation to summon the spirits.
El mago recitó una encantación para invocar los espíritus.
C2 noun /ˌɪməʊˈbɪləti/

immobility

inmovilidad
Meaning
The state of being unable to move.
Example
After the accident, she suffered from immobility in her legs.
Después del accidente, sufrió de inmovilidad en sus piernas.
C2 noun /ˈɪnˌɡreɪt/

ingrate

ingrato
Meaning
An ungrateful person; someone who shows no appreciation.
Example
He worked hard for his friend, but the ingrate never thanked him.
Trabajó duro para su amigo, pero el ingrato nunca le dio las gracias.
C2 adjective /ɪˈlɪbərəl/

illiberal

iliberal
Meaning
Opposed to liberal principles; restricting freedom of thought or behavior.
Example
The government was criticized for its illiberal policies.
El gobierno fue criticado por sus políticas iliberales.
C2 noun /ˌɪnədˈvɜːrtəns/

inadvertence

descuido
Meaning
Failure to pay attention; carelessness.
Example
The error happened through sheer inadvertence.
El error ocurrió por pura inadvertencia.
C2 verb /ˌɪntərˈsiːd/

intercede

interceder
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.
Ella intercedió con el maestro para darle otra oportunidad a su hermano.
C2 adjective /ɪnˈvɛtərət/

inveterate

inmutable
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.
Él es un lector inmutable que pasa horas en la biblioteca todos los días.
C2 noun /ˈɪɡ.nəˌmɪn.i/

ignominy

ignominia
Meaning
Public shame, disgrace, or dishonor.
Example
He lived the rest of his life in ignominy after the scandal.
Vivió el resto de su vida en ignominia después del escándalo.
C2 noun /ɪˌluːmɪˈnɑːti/

illuminati

iluminati
Meaning
a group of people claiming to have special enlightenment or secret knowledge, often linked to conspiracies
Example
Many conspiracy theories involve the Illuminati as a secret world-controlling group.
Muchas teorías de conspiración involucran a los Illuminati como un grupo secreto que controla el mundo.
C2 adjective /ˌɪnɪkˈspiːdiənt/

inexpedient

desaconsejable
Meaning
Not advisable, suitable, or practical in the circumstances.
Example
It would be inexpedient to invest without proper research.
Sería desaconsejable invertir sin una investigación adecuada.
C2 adjective ɪnˈdɒm.ɪ.tə.bəl

indomitable

indomable
Meaning
Impossible to subdue or defeat.
Example
Her indomitable spirit helped her overcome adversity.
Su espíritu indomable la ayudó a superar la adversidad.
C2 noun /ˌɪnkəˈpæsəti/

incapacity

incapacidad
Meaning
the lack of ability, power, or fitness to do something
Example
His mental incapacity prevented him from making important decisions.
Su incapacidad mental le impidió tomar decisiones importantes.
C2 noun /ˈaɪdɪl/

idyll

escena idílica
Meaning
An extremely happy, peaceful, or picturesque episode or scene, often idealized.
Example
Their honeymoon was an idyll on a tropical island.
Su luna de miel fue una escena idílica en una isla tropical.
C2 verb ɪmˈbaɪb

imbibe

absorber, asimilar, beber
Meaning
Absorb or assimilate ideas or knowledge. To drink or take in.
Example
He tried to imbibe the wisdom from his mentor.
Intentó absorber la sabiduría de su mentor.
C2 noun /ɪˈrʌp.ʃən/

Irruption

una entrada violenta repentina; una invasión o incursión; una explosión o erupción repentina
Meaning
a sudden violent entry; an invasion or raid; a sudden outburst or eruption
Example
The army's irruption into enemy territory caught the opposing forces completely off guard.
La irrupción del ejército en el territorio enemigo sorprendió completamente a las fuerzas opuestas.
C2 verb /ˌɪntərˈmɪt/

intermit

interrumpir
Meaning
To suspend or stop for a time; to pause intermittently.
Example
The rain would intermit and then start again.
La lluvia se interrumpiría y luego comenzaría de nuevo.
C2 adjective /ˈɪnfəntaɪl/

infantile

infantil
Meaning
characteristic of an infant; childish
Example
His infantile behavior embarrassed everyone at the meeting.
Su comportamiento infantil avergonzó a todos en la reunión.
C2 adjective /ɪˈmɪsəbl/

immiscible

inmiscible
Meaning
Describes liquids that do not mix together.
Example
Oil and water are immiscible liquids.
El aceite y el agua son líquidos inmiscibles.
C2 adjective /ɪnˈkoʊ.ɪt/ or /ɪnˈkoʊ.eɪt/

inchoate

incompleto
Meaning
Just begun and not fully formed; rudimentary.
Example
His inchoate ideas needed more research to be developed.
Sus ideas incompletas necesitaban más investigación para ser desarrolladas.
C2 adjective ˌɪm.pəˈtɜː.bə.bəl

imperturbable

imperturbable
Meaning
Unable to be upset or excited; not easily disturbed.
Example
His imperturbable nature made him a great leader.
Su naturaleza imperturbable lo convirtió en un gran líder.
C2 verb /ɪmˈpjuːn/

impugn

disputar la verdad, validez o honestidad de una declaración o motivo
Meaning
to dispute the truth, validity, or honesty of a statement or motive
Example
The lawyer tried to impugn the credibility of the witness.
El abogado intentó impugnar la credibilidad del testigo.
C2 adjective /ɪˈlɪmɪtəbl/

illimitable

ilimitado
Meaning
Without limits or bounds.
Example
The universe is often described as illimitable.
El universo a menudo se describe como ilimitado.
C2 verb /ˈɪŋkʌlpeɪt/

inculpate

inculpar
Meaning
To blame or accuse someone of wrongdoing.
Example
The evidence seemed to inculpate the suspect in the crime.
La evidencia parecía inculpar al sospechoso en el crimen.
C2 adjective /ɪnˈsɪpiənt/

incipient

incipiente
Meaning
in an initial stage; beginning to develop
Example
The incipient storm made the sky turn dark and heavy.
La tormenta incipiente hizo que el cielo se volviera oscuro y pesado.
C2 adjective /ɪnˈkɒŋɡruənt/

incongruent

incongruente
Meaning
Not in harmony or keeping with the surroundings or other aspects.
Example
His casual outfit looked incongruent at the formal dinner.
Su atuendo casual se veía incongruente en la cena formal.
C2 adjective /ɪnˈkɒnstənt/

inconstant

inconstante
Meaning
frequently changing; not consistent or dependable
Example
His inconstant moods made it difficult to work with him.
Sus estados de ánimo inconstantes hacían difícil trabajar con él.
C2 noun /ˌɪkθiˈɒlədʒi/

ichthyology

icthología
Meaning
The branch of zoology that deals with fish.
Example
He pursued a degree in ichthyology at the university.
Obtuvo un título en ictiología en la universidad.
C2 noun /ˌɪnəməˈrɑːtə/

inamorata

amante
Meaning
A woman with whom someone is in love; a female lover.
Example
He wrote a poem dedicated to his inamorata.
Escribió un poema dedicado a su enamorada.
C2 adjective /ɪnˈkoʊətɪv/

inchoative

incipiente
Meaning
relating to the beginning of something; in an initial stage
Example
The poet used inchoative expressions to depict the dawn of creation.
El poeta utilizó expresiones incipientes para describir el amanecer de la creación.
C2 adjective /ɪˈræsɪbl/

irascible

irascible
Meaning
Easily angered; quick-tempered.
Example
His irascible nature often got him into trouble.
Su naturaleza irascible a menudo lo metía en problemas.
C2 noun /ˌɪmpjuˈteɪʃən/

imputation

imputación
Meaning
an accusation or attribution of blame
Example
The politician denied the imputation of corruption.
El político negó la imputación de corrupción.
C2 noun /ˈɪndɪkənt/

indicant

indicador
Meaning
Something that indicates or points to a fact or condition.
Example
High fever is often an indicant of infection.
La fiebre alta a menudo es un indicador de infección.
C2 noun /ˈɪn.dɪ.dʒəns/

indigence

indigencia
Meaning
a state of extreme poverty or destitution
Example
The charity was founded to help people living in indigence.
La caridad se fundó para ayudar a las personas que viven en indigencia.
C2 adjective /ˌɪməˈmɔːriəl/

immemorial

inmemorial
Meaning
Extending back beyond memory or record; ancient.
Example
The tradition has been followed since time immemorial.
La tradición ha sido seguida desde tiempos inmemoriales.
C2 noun /ˈɪntərˌveɪl/

intervale

terreno bajo a lo largo de un río, generalmente fértil y plano
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.
Los agricultores cultivaron cosechas en el intervalo fértil junto al río.
C2 verb /ɪnˈɡrɑːft/

ingraft

implantar
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.
El maestro trató de implantar buenos modales en los estudiantes.
C2 adjective /ˌɪnɪkˈstɛnsəbl/

inextensible

inextensible
Meaning
Not capable of being stretched or extended.
Example
This rope is made of an inextensible material.
Esta cuerda está hecha de un material inextensible.
C2 noun /ˌɪnjuːˈɛndəʊ/

innuendo

indirecta
Meaning
An allusive or oblique remark or hint, typically a suggestive or disparaging one.
Example
The manager's innuendo was directed towards his competitor.
La indirecta del gerente fue dirigida hacia su competidor.
C2 verb /ɪnˈdɛmnɪfaɪ/

indemnify

indemnizar
Meaning
to compensate someone for harm or loss; to secure against future damage or cost
Example
The insurance company agreed to indemnify the client for the damages.
La compañía de seguros acordó indemnizar al cliente por los daños.
C2 verb /ɪmˈpeɪl/

impale

empalar
Meaning
to pierce or fix something with a sharp object
Example
The knight was impaled by the enemy’s spear.
El caballero fue empalado por la lanza del enemigo.
C2 noun /ˈɪntərˌloʊpər/

interloper

intruso
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.
Se sintió como un intruso en la reunión familiar privada.
C2 noun /ˈɪmpjʊdəns/

impudence

desvergüenza
Meaning
Rude and disrespectful behavior.
Example
The student's impudence shocked the entire class.
La desvergüenza del estudiante sorprendió a toda la clase.
C2 adjective /ˌɪndɪˈtɜːrmənət/

indeterminate

indeterminado
Meaning
Not exactly known, defined, or established; vague or uncertain.
Example
The project was delayed for an indeterminate amount of time.
El proyecto se retrasó por un tiempo indeterminado.
C2 adjective /ɪɡˈnoʊ.bəl/

Ignoble

deshonroso; vil; indigno
Meaning
dishonorable; not noble in character; base or mean
Example
His ignoble actions betrayed his friends' trust.
Sus acciones deshonrosas traicionaron la confianza de sus amigos.
C2 noun /ɪmp/

imp

pequeño diablillo travieso
Meaning
a small mischievous devil or sprite; a playful troublemaker
Example
The child was acting like a little imp, hiding his toys everywhere.
El niño se comportaba como un pequeño diablillo, escondiendo sus juguetes por todas partes.
C2 adjective /ˌaɪdəˈlɑːtrɪəs/

idolatrious

idolátrico
Meaning
Excessively devoted or reverent towards idols or false gods.
Example
The ancient tribe was known for its idolatrious practices.
La antigua tribu era conocida por sus prácticas idolátricas.
C2 noun (compound/erroneous entry) /ɪnˈɛksərəbl ɑːrmi/

inexorableinexorablearmy

ejército imparable
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.
Los rebeldes temían al ejército imparable que se acercaba a su fortaleza.
C2 adjective /ˌɪnɪkˈsprɛsəbl/

inexpressible

inexpresable
Meaning
Too strong or extreme to be expressed in words.
Example
She felt inexpressible joy at the news of her success.
Sintió una alegría inexpresable al enterarse de su éxito.
C2 noun /aɪˈkɒnəklæst/

iconoclast

iconoclasta
Meaning
A person who attacks or criticizes cherished beliefs, traditions, or institutions.
Example
He was known as an iconoclast who challenged old traditions.
Era conocido como un iconoclasta que desafiaba las viejas tradiciones.
C2 noun /ˌɪn.ɪˈbraɪ.ə.ti/

inebriety

embriaguez
Meaning
the state of being drunk or intoxicated
Example
His frequent inebriety led to the loss of his job.
Su frecuente embriaguez le llevó a perder su trabajo.
C2 noun /ɪˈmɒdəsti/

immodesty

immodestia
Meaning
lack of modesty or decency; behavior or attitude that is overly bold or improper
Example
The article was criticized for its tone of immodesty.
El artículo fue criticado por su tono de immodestia.
C2 adjective /ɪnhɑːrˈmoʊniəs/

Inharmonious

desarmónico
Meaning
lacking harmony; discordant in sound; not in tune
Example
The inharmonious sounds from the broken piano made everyone cover their ears.
Los sonidos desarmónicos del piano roto hicieron que todos se cubrieran los oídos.
C2 adjective /ɪmˈpɑːlɪtɪk/

impolitic

imprudente
Meaning
Unwise or imprudent; not showing good judgment.
Example
It would be impolitic to criticize them openly.
Sería imprudente criticarlos abiertamente.
C2 adjective /ˌɪmpəˈmɪsəbl/

impermissible

imposible
Meaning
Not permitted or allowed.
Example
Such behavior is impermissible in the workplace.
Tal comportamiento es imposible en el lugar de trabajo.
C2 noun /ɪnˈɡrætɪˌtjuːd/

ingratitude

ingratitud
Meaning
Lack of gratitude; failure to show thanks or appreciation.
Example
His ingratitude hurt her feelings after all she had done for him.
Su ingratitud le dolió después de todo lo que ella había hecho por él.
C2 adjective /ɪnˈtɛmpərət/

intemperate

intemperante
Meaning
Lacking self-control; immoderate, especially in indulgence.
Example
The politician's intemperate remarks caused controversy.
Los comentarios intemperantes del político causaron controversia.
C2 adjective /ɪˈnɪm.ɪ.tə.bəl/

inimitable

inimitable
Meaning
So good or unusual as to be impossible to copy; unique.
Example
His inimitable writing style made him a literary legend.
Su estilo de escritura inimitable lo convirtió en una leyenda literaria.
C2 adverb /ˈaɪsɪli/

icily

fríamente
Meaning
In a very cold, unfriendly, or hostile manner.
Example
She replied icily to his question.
Ella respondió fríamente a su pregunta.
C2 noun /ˈɪd.i.ə.si/

Idiocy

idiotez
Meaning
extremely stupid behavior or actions; foolishness
Example
The decision to ignore safety protocols was pure idiocy that endangered everyone.
La decisión de ignorar los protocolos de seguridad fue pura idiotez que puso en peligro a todos.
C2 adjective /ɪnˈvaɪələbl/

inviolable

inviolable
Meaning
never to be broken, dishonored, or violated
Example
Human rights are considered inviolable in modern democracies.
Los derechos humanos son considerados inviolables en las democracias modernas.
C2 verb /ɪnˈtɜːrpəˌleɪt/

interpolate

interpolar
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.
El editor interpoló un párrafo faltante en el manuscrito.
C2 noun /ˌɪnvəˈlɪdɪti/

invalidity

invalidez
Meaning
the state of being invalid, legally void, or lacking force or validity
Example
The court ruled that the contract suffered from invalidity.
El tribunal dictaminó que el contrato tenía invalidez.
C2 adjective /ˌɪnɔːˈspɪʃəs/

Inauspicious

desafortunado
Meaning
unlucky; showing signs that future success is unlikely; unfavorable
Example
The dark clouds seemed inauspicious for the wedding.
Las nubes oscuras parecían desfavorables para la boda.
C2 noun /ˌɪn.ʌnˈdeɪ.ʃən/

inundation

inundación
Meaning
The act of flooding or overwhelming with water or things.
Example
The town suffered from a severe inundation after the heavy rains.
La ciudad sufrió una grave inundación después de las fuertes lluvias.
C2 verb /ɪmˈpjuːt/

impute

imputar
Meaning
to attribute a fault or responsibility to someone
Example
They imputed the company's success to good leadership.
Ellos imputaron el éxito de la empresa a un buen liderazgo.
C2 adjective /ˌaɪsəʊˈθɜːrməl/

isothermal

isotérmico
Meaning
Having or maintaining equal or constant temperature.
Example
The experiment was conducted under isothermal conditions.
El experimento se realizó bajo condiciones isotérmicas.
C2 adjective /ˈɪndələnt/

indolent

perezoso
Meaning
Wanting to avoid activity or exertion; lazy.
Example
The indolent cat slept in the sun all afternoon.
El gato perezoso durmió al sol toda la tarde.
C2 adjective /ɪˈrɛzəluːt/

irresolute

indeciso
Meaning
uncertain or indecisive; lacking determination
Example
He stood irresolute at the crossroads, unsure which path to take.
Él se quedó indeciso en el cruce de caminos, sin saber qué camino tomar.
C2 noun /ɪnˌtɜːrpəˈleɪʃən/

interpolation

interpolación
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.
El científico usó interpolación para predecir los puntos de datos faltantes.
C2 adjective /ˈɪkθiɪk/

ichthyic

ictíico
Meaning
Relating to or resembling fish.
Example
The artist's painting had an ichthyic quality.
La pintura del artista tenía una cualidad ictíica.
C2 adjective /ˌɪnkɒntrəˈvɜːtəbl/

incontrovertible

incontrovertible
Meaning
impossible to deny or dispute; unquestionable
Example
The evidence was incontrovertible and proved his innocence.
La evidencia era incontrovertible y demostró su inocencia.
C2 adjective /ˌɪnˌɑːpərˈtuːn/

inopportune

momento inoportuno
Meaning
Happening at a bad or inconvenient time.
Example
His call came at the most inopportune moment.
Su llamada llegó en el momento más inoportuno.
C2 adjective /ˌɪnɪkˈstrɪkəbl/

inextricable

inextricable
Meaning
Impossible to separate or escape from.
Example
The two friends shared an inextricable bond.
Los dos amigos compartieron un vínculo inextricable.
C2 verb /ˈɪmprɛɡneɪt/

impregnate

embarazar / impregnar
Meaning
To make pregnant; to fill or saturate with something.
Example
The scientist used a method to impregnate the material with resin.
El científico utilizó un método para impregnar el material con resina.
C2 noun /ɪnˈtɛstəsi/

intestacy

muerte sin testamento
Meaning
The condition of dying without having made a valid will.
Example
His estate was divided according to the laws of intestacy.
Su patrimonio fue dividido según las leyes de la intestacia.
C2 adjective /ˌɪnkænˈdɛsənt/

incandescent

incandescente
Meaning
emitting light as a result of being heated; extremely bright or passionate
Example
The incandescent lamp lit up the entire hall.
La lámpara incandescente iluminó todo el salón.
C2 verb /ɪˈmjʊər/

immure

encerrar
Meaning
to confine or enclose someone against their will
Example
The prisoner was immured in a dark cell.
El prisionero fue encerrado en una celda oscura.
C2 verb /ɪnˈsteɪt/

instate

instaurar
Meaning
To set up in position, office, or authority.
Example
The board decided to instate her as the new director.
La junta decidió instatarla como la nueva directora.
C2 noun /ˌɪn.trəˈɡreʃ.ən/

introgression

introducción genética
Meaning
The transfer of genetic information from one species to another through repeated backcrossing.
Example
Introgression plays a significant role in plant breeding.
La introgressión juega un papel importante en la mejora de plantas.
C2 adjective /ɪnˈtɛsteɪt/

intestate

muerto sin testamento
Meaning
Having died without leaving a valid will.
Example
She died intestate, so her assets were distributed by law.
Ella murió sin testamento, por lo que sus bienes fueron distribuidos por la ley.
C2 adjective /ˈɪnˌbrɛd/

inbred

innato
Meaning
existing naturally in a person or animal; also related to reproduction within a limited community
Example
He has an inbred sense of loyalty.
Él tiene un sentido innato de lealtad.
C2 noun /ˌɪnsjəˈlærəti/

insularity

insularidad
Meaning
The state of being isolated or narrow-minded.
Example
The insularity of the group prevented them from accepting new ideas.
La insularidad del grupo les impidió aceptar nuevas ideas.
C2 adjective /ɪnˈkɒntɪnənt/

incontinent

incontinente
Meaning
lacking control over urination or defecation; lacking self-restraint
Example
The patient was incontinent after surgery.
El paciente era incontinente después de la cirugía.
C2 noun /ˌɪnkrʌˈsteɪʃən/

incrustation

costra
Meaning
a crust or hard coating formed on the surface of something
Example
The old pipes were blocked due to heavy incrustation of minerals.
Las viejas tuberías estaban bloqueadas debido a una fuerte incrustación de minerales.
C2 adjective /ɪmˈpruːdənt/

imprudent

imprudente
Meaning
Not showing care for the consequences of an action.
Example
It was imprudent to drive in such stormy weather.
Era imprudente conducir en un clima tan tormentoso.
C2 adjective /ɪnˈɛk.wɪ.tə.bəl/

inequitable

inequitativo
Meaning
Not fair or just; lacking in fairness or equality.
Example
The distribution of resources was inequitable among the workers.
La distribución de recursos fue inequitativa entre los trabajadores.
C2 noun /ˌɪnˌkeɪpəˈbɪləti/

incapability

incapacidad
Meaning
lack of ability or power to do something; inability or incompetence
Example
His incapability to manage the team led to serious problems.
Su incapacidad para gestionar el equipo provocó problemas graves.
C2 adjective /ɪnˈskruːtəbl̩/

inscrutable

felicidad
Meaning
impossible to understand or interpret
Example
His inscrutable expression made it hard to know what he was thinking.
No pudo esconder su felicidad cuando recibió el premio.
C2 noun /ɪmˈprɑːvɪdəns/

improvidence

imprudencia
Meaning
Lack of foresight or care for future needs.
Example
His improvidence led to financial difficulties.
Su imprudencia lo llevó a dificultades financieras.
C2 noun /ɪnˈɛrənsi/

inerrancy

inerrancia
Meaning
the belief or quality of being free from error; absolute correctness
Example
Some religious groups strongly affirm the inerrancy of their sacred texts.
Algunos grupos religiosos afirman fuertemente la inerrancia de sus textos sagrados.
C2 noun /aɪər/

ire

ira, enojo
Meaning
intense anger or rage
Example
The new policy provoked the ire of the employees.
La nueva política provocó la ira de los empleados.
C2 noun /ˌɪrɪˈdɛsəns/

iridescence

brillo iridiscente
Meaning
a play of lustrous, changing colors like those of a rainbow
Example
The butterfly's wings shimmered with iridescence.
Las alas de la mariposa brillaban con brillo iridiscente.
C2 noun /ɪnˈsuːsiəns/

insouciance

despreocupación
Meaning
Casual lack of concern; indifference.
Example
She carried herself with an air of insouciance, unbothered by the challenges ahead.
Ella caminaba con un aire de despreocupación, sin preocuparse por los desafíos que venían.
C2 verb /ˌɪn.trəˈmɪt/

intromit

introducir
Meaning
To insert or introduce something into a place or body.
Example
The doctor carefully intromitted the instrument into the wound.
El doctor introdujo cuidadosamente el instrumento en la herida.
C2 verb /ɪnˈveɪɡəl/

inveigle

engatusar
Meaning
To persuade someone to do something by deception or flattery.
Example
She inveigled him into signing the contract.
Ella lo engañó para que firmara el contrato.
C2 adjective /ɪˈrædɪkəbəl/

irradicable

irradicable
Meaning
not able to be eradicated; impossible to destroy or remove completely
Example
The love of a mother for her child is irradicable.
El amor de una madre por su hijo es irradicable.
C2 verb /ˈɪmprɪkeɪt/

imprecate

imprecate
Meaning
To utter a curse or invoke evil upon someone.
Example
The old woman imprecated her enemies with dark words.
La vieja mujer imprecó a sus enemigos con palabras oscuras.
C2 noun /ˌɪnvəˈluːʃən/

involution

involución
Meaning
a complicated or intricate form or state; in biology, the shrinking of an organ after its function has finished
Example
The story was full of involution, making it hard to follow.
La historia estaba llena de involución, lo que hacía difícil de seguir.
C2 adverb /ˌɪnsəʊˈmʌtʃ/

insomuch

tanto
Meaning
to such an extent
Example
He was insomuch tired that he could hardly stand.
Estaba tan cansado que apenas podía mantenerse en pie.