irritant
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C1 noun /ˈɪrɪtənt/

irritant

sustancia irritante
Meaning
something that causes irritation or discomfort
Example
Dust is a common irritant for people with allergies.
El polvo es un irritante común para las personas con alergias.
C2 noun /ɪnˈtɜːrstɪs/

interstice

hendidura
Meaning
a small space that lies between things
Example
Light filtered through the narrow interstices of the wall.
La luz se filtró a través de las estrechas hendiduras de la pared.
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.
C1 adjective /ˈɪnsələnt/

insolent

insolente, arrogante
Meaning
showing a rude and arrogant lack of respect
Example
The insolent student refused to follow the teacher's instructions.
El estudiante insolente se negó a seguir las instrucciones del maestro.
C1 noun ˌɪm.pʌlˈsɪv.ɪ.ti

impulsivity

impulsividad
Meaning
The tendency to act quickly and without thought or care; lack of self-control.
Example
His impulsivity led him to make reckless choices.
Su impulsividad lo llevó a tomar decisiones imprudentes.
C2 adjective /ˌɪnkənˈsɪdərəbl/

inconsiderable

insignificante
Meaning
Too small or unimportant to be worth considering.
Example
The donation was not inconsiderable, though smaller than expected.
La donación no fue insignificante, aunque más pequeña de lo esperado.
A2 adverb /ɪnˈdiːd/

indeed

en efecto
Meaning
used to emphasize or confirm a statement
Example
It was a long journey indeed.
Fue un largo viaje, de hecho.
C1 adjective /ˌɪnkənˈsɪdərət/

inconsiderate

desconsiderado
Meaning
Thoughtless; showing a lack of concern for others.
Example
It was inconsiderate of him to play loud music late at night.
Fue desconsiderado de su parte poner música alta tarde en la noche.
C1 noun ɪnˌɛv.ɪ.təˈbɪl.ɪ.ti

inevitability

inevitabilidad
Meaning
The quality of being certain to happen and impossible to avoid or prevent.
Example
The inevitability of change is a part of life.
La inevitabilidad del cambio es parte de la vida.
C1 noun /ɪnˈdɪf.ər.əns/

Indifference

indiferencia; desinterés; apatía
Meaning
lack of interest, concern, or sympathy; the state of not caring about something
Example
His indifference to his studies resulted in poor grades throughout the semester.
Su indiferencia por sus estudios resultó en malas calificaciones durante todo el semestre.
A2 preposition /ɪnˈkluːdɪŋ/

including

incluido
Meaning
used to show that someone or something is part of a larger group
Example
Many people attended the event, including students and teachers.
Muchas personas asistieron al evento, incluidos estudiantes y maestros.
C2 noun /aɪˈoʊtə/

iota

un mínimo
Meaning
An extremely small amount.
Example
He did not show an iota of fear.
No mostró ni un mínimo de miedo.
B2 noun ɪnˈfleɪʃən

inflation

inflación
Meaning
A general increase in prices and fall in the purchasing value of money.
Example
Inflation erodes the purchasing power of consumers.
La inflación erosiona el poder adquisitivo de los consumidores.
C1 noun /ˈɪnkjʊˌbeɪtər/

incubator

incubadora
Meaning
a device or environment that provides suitable conditions for eggs, cells, or infants to develop
Example
The premature baby was placed in an incubator for care.
El bebé prematuro fue colocado en una incubadora para su cuidado.
C1 verb /ɪmˈploʊd/

implode

implosionar
Meaning
To collapse or burst inward violently.
Example
The old building imploded during the demolition.
El viejo edificio implosionó durante la demolición.
C1 adjective ˌɪn.təˈmɪt.ənt

intermittent

intermitente
Meaning
Happening irregularly, not continuously.
Example
The rain was intermittent throughout the day.
La lluvia fue intermitente durante todo el día.
B2 verb /ɪmˈpoʊzd/

imposed

impuesto
Meaning
forced something to be accepted or put in place
Example
The government imposed new regulations on the industry.
El gobierno impuso nuevas regulaciones sobre la industria.
B1 adjective /ɪnˈvɑːlvd/

involved

involucrado
Meaning
complicated or engaged in something
Example
She was deeply involved in community service.
Ella estaba profundamente involucrada en el servicio comunitario.
C2 adverb /ˌɪnəzˈmʌtʃ/

inasmuch

en la medida en que
Meaning
To the extent that; considering that.
Example
Inasmuch as you are their teacher, you should guide them carefully.
En la medida en que eres su maestro, deberías guiarlos cuidadosamente.
C1 adjective /ɪnˈtɛlɪdʒəbl/

intelligible

Meaning
Able to be understood; clear enough to be comprehended.
Example
Her speech was barely intelligible over the noise.
C2 noun /ˌɪntərˈsɛsər/

intercessor

intercesor
Meaning
a person who intervenes or pleads on behalf of another
Example
He acted as an intercessor to resolve the conflict between the two families.
Él actuó como un intercesor para resolver el conflicto entre las dos familias.
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 /ˌɪlˈneɪ.tʃəd/

ill-natured

de mal carácter
Meaning
Having a bad or unpleasant character; unkind or malicious.
Example
He made an ill-natured remark about his colleague.
Hizo un comentario de mal carácter sobre su colega.
C2 noun /ˌɪdiəˈsɪŋkrəsi/

idiosyncrasy

idiosincrasia
Meaning
A distinctive or peculiar characteristic, habit, or mannerism unique to an individual.
Example
One of her idiosyncrasies was humming while working.
Una de sus idiosincrasias era tararear mientras trabajaba.
C2 noun /ˌɪntərˈlɒkjətər/

interlocutor

interlocutor
Meaning
a person who takes part in a conversation or dialogue
Example
She was a skilled interlocutor during the debate.
Ella era una interlocutora hábil durante el debate.
C2 verb /ˈɪntərˌdɪkt/

interdict

prohibir
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.
El tribunal se movió para prohibir la venta de los bienes ilegales.
B2 adjective /ɪnˈkeɪpəbəl/

incapable

incapaz
Meaning
lacking the ability, skill, or capacity to do something
Example
He is incapable of understanding complex instructions.
Es incapaz de entender instrucciones complejas.
C1 adjective /ɪmˈpɛtʃ.u.əs/

impetuous

impulsivo
Meaning
Acting or done quickly and without thought or care; impulsive.
Example
His impetuous decision led to unexpected consequences.
Su decisión impulsiva condujo a consecuencias inesperadas.
B2 noun, verb /ˌɪnkənˈviːniəns/

inconvenience

inconveniente
Meaning
trouble or difficulty caused to someone; to cause trouble or difficulty to someone
Example
We apologize for any inconvenience caused by the delay.
Pedimos disculpas por cualquier inconveniente causado por el retraso.
B2 noun /ɪmˈpɒlɪtnəs/

impoliteness

descortesía
Meaning
lack of good manners or courtesy; rude behavior
Example
His impoliteness towards the guests shocked everyone.
Su descortesía hacia los invitados sorprendió a todos.
C1 noun /ˌɪnkwɪˈzɪʃən/

inquisition

inquisición
Meaning
A prolonged and intense questioning or investigation, often harsh in nature.
Example
The journalist faced an inquisition from the panel about his sources.
El periodista enfrentó una inquisición del panel sobre sus fuentes.
C1 noun /ˈɪnkwest/

inquest

investigación
Meaning
A legal or official inquiry, especially into the cause of a death.
Example
The inquest revealed the cause of the accident.
La investigación reveló la causa del accidente.
B2 noun ˈɪn.deks

index

índice
Meaning
An alphabetical list of names, subjects, etc. with references to the places where they occur, typically found at the end of a book; a sign or measure of something.
Example
An index organizes critical data.
Un índice organiza datos importantes.
B2 adverb /aɪˈrɒnɪkli/

ironically

irónicamente
Meaning
in a way that is contrary to what is expected or intended
Example
Ironically, the fire station burned down.
Irónicamente, la estación de bomberos se incendió.
C2 noun /ˌaɪ.diˈeɪ.ʃən/

ideation

El proceso de formar y desarrollar nuevas ideas o conceptos mediante pensamiento creativo y lluvia de ideas.
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.
El equipo participó en sesiones de ideación para generar nuevas ideas de productos.
C1 adjective /ˌɪnkɒmprɪˈhɛnsəbl/

incomprehensible

incomprensible
Meaning
Impossible or very difficult to understand.
Example
The professor’s lecture was so fast it became incomprehensible.
La conferencia del profesor fue tan rápida que se volvió incomprensible.
B1 verb /ɪmˈprɛs/

impress

impresionar
Meaning
to cause someone to feel admiration or respect
Example
Her speech managed to impress the audience.
Su discurso logró impresionar a la audiencia.
C2 noun /ɪnˈsɪpiəns/

incipience

inicio
Meaning
the beginning or initial stage of something
Example
The project was still in its incipience when funding was approved.
El proyecto aún estaba en su inicio cuando se aprobó la financiación.
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.
C1 noun /ˌɪnkənˈsɪstənsi/

inconsistency

inconsistencia
Meaning
The quality of being contradictory, irregular, or not staying the same.
Example
There is an inconsistency between his words and actions.
Hay una inconsistencia entre sus palabras y acciones.
C1 noun /ɪmˌpɜː.sənˈeɪ.ʃən/

impersonation

suplantación
Meaning
The action of pretending to be another person for the purpose of entertainment or fraud.
Example
Online impersonation is a serious cybercrime.
La suplantación en línea es un crimen cibernético grave.
B2 adjective ɪˈmɜː.sɪv

immersive

inmersivo
Meaning
Providing, involving, or characterized by deep absorption or immersion in something.
Example
Virtual reality creates an immersive learning environment.
La realidad virtual crea un ambiente de aprendizaje inmersivo.
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 /ˌaɪ.kə.nəˈklæs.tɪk/

iconoclastic

caracterizado por atacar o rechazar creencias, tradiciones o valores establecidos
Meaning
Characterized by attacking or rejecting cherished beliefs, traditions, or established values.
Example
Her iconoclastic views challenged the conventional wisdom of the industry.
Sus puntos de vista iconoclásticos desafiaron la sabiduría convencional de la industria.
C1 adjective /ˌɪnədˈvɜːrtənt/

inadvertent

inadvertido, no intencionado
Meaning
Not resulting from or achieved through deliberate planning; unintentional.
Example
Her inadvertent mistake caused a delay in the project.
Su error inadvertido causó un retraso en el proyecto.
C1 verb /ˈɪnkjʊˌbeɪt/

incubate

incubar
Meaning
to keep eggs, cells, or organisms at the right conditions for development
Example
The hen will incubate the eggs until they hatch.
La gallina incubará los huevos hasta que eclosionen.
C1 noun /ɪˈmɜː.ʃən/

immersion

inmersión
Meaning
Complete engagement in an environment or experience.
Example
Immersion in VR games makes users feel like they are inside the virtual world.
La inmersión en juegos de VR hace que los usuarios sientan como si estuvieran dentro del mundo virtual.
C1 adjective ˌɪn.təˈstel.ər

interstellar

entre las estrellas, interestelar, cósmico
Meaning
Occurring or situated between stars.
Example
Scientists study interstellar travel possibilities.
Los científicos estudian las posibilidades de viajes interestelares.
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 verb /ɪˈluːmɪn/

illumine

iluminar
Meaning
to light up or make clear
Example
The rising sun illumined the mountain peaks.
El sol naciente iluminó las cumbres de la montaña.
B2 noun ɪˈlɪtərəsi

illiteracy

analfabetismo
Meaning
The inability to read and write; lack of education or knowledge in a particular area.
Example
Illiteracy often leads to poverty and unemployment.
El analfabetismo a menudo conduce a la pobreza y el desempleo.
C1 adjective /ɪˈledʒ.ə.bəl/

illegible

ilegible
Meaning
Not clear enough to be read; unreadable.
Example
The doctor’s handwriting was almost illegible.
La escritura del doctor era casi ilegible.
B1 noun /ˈɪnkʌm/

income

ingreso
Meaning
money received for work or through investments
Example
His monthly income is enough to support his family.
Su ingreso mensual es suficiente para mantener a su familia.
A2 noun /ˈɪntəvjuː/

interview

entrevista
Meaning
A meeting of people face to face, especially for consultation.
Example
The interview was conducted in a calm and professional manner.
La entrevista se llevó a cabo de manera tranquila y profesional.
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.
A2 verb /ɪɡˈnɔːr/

ignore

ignorar
Meaning
to refuse to take notice of; to disregard intentionally
Example
She decided to ignore the rude comments.
Ella decidió ignorar los comentarios groseros.
C2 verb /ˈɪməleɪt/

immolate

inmolar
Meaning
To kill or sacrifice, especially by burning.
Example
The protesters threatened to immolate themselves in front of the building.
Los manifestantes amenazaron con inmolarse frente al edificio.
B2 noun ˌɪn.stəˈleɪ.ʃən

installation

instalación
Meaning
The action or process of installing someone or something, or of being installed.
Example
The installation of the submarine cable is almost complete.
La instalación del cable submarino está casi completa.
C1 adverb /ˈɪnwərdli/

inwardly

por dentro
Meaning
In the mind or spirit; not outwardly visible.
Example
She smiled outwardly but inwardly she was worried.
Ella sonrió por fuera, pero por dentro estaba preocupada.
C2 noun /ˌɪn.təˈvɛn.ʃə.nɪ.zəm/

interventionism

intervencionismo
Meaning
Government policy of active involvement in economic affairs.
Example
The central bank's interventionism helped stabilize inflation.
El intervencionismo del banco central ayudó a estabilizar la inflación.
C1 adjective /ɪˈrɛpərəbəl/

Irreparable

irreparable
Meaning
impossible to repair or fix; permanent damage that cannot be undone
Example
The accident caused irreparable damage to his spine.
El accidente causó daños irreparables en su columna vertebral.
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.
B1 adjective /ɪˈliː.ɡəl/

illegal

ilegal
Meaning
Not allowed by law; unlawful.
Example
It is illegal to drive without a valid license.
Es ilegal conducir sin una licencia válida.
C2 adjective /ɪnˈɡreɪʃiˌeɪtɪŋ/

ingratiating

adulador
Meaning
Charming or flattering in a way intended to gain favor.
Example
His ingratiating smile made everyone trust him quickly.
Su sonrisa aduladora hizo que todos confiaran en él rápidamente.
B2 verb /ɪnˈkwaɪər/

inquire

preguntar
Meaning
to ask; to investigate
Example
She inquired about the job opening.
Ella preguntó sobre la oferta de trabajo.
B2 verb /ɪnˈtɜːrprət/

interpret

interpretar / traducir
Meaning
to explain the meaning of something; to translate orally
Example
She had to interpret the speech for the foreign guests.
Ella tuvo que interpretar el discurso para los invitados extranjeros.
C1 adjective /ɪmˈpɜːrviəs/

impervious

impermeable
Meaning
Not allowing fluid to pass through; unable to be affected by something.
Example
The jacket is impervious to rain.
La chaqueta es impermeable a la lluvia.
B1 verb /ɪnˈvɛnt/

invent

inventar
Meaning
to create or design something that has not existed before
Example
Thomas Edison invented the electric bulb.
Thomas Edison inventó la bombilla eléctrica.
C1 noun /ɪnˌkɑːsəˈreɪʃən/

incarceration

encarcelamiento
Meaning
the state of being imprisoned or confined
Example
The criminal faced years of incarceration for his crimes.
El criminal enfrentó años de encarcelamiento por sus crímenes.
C1 adjective /ˈɪnbɔːrn/

Inborn

innato; congénito; inherente
Meaning
existing from birth; natural; inherent
Example
She has an inborn talent for music.
Ella tiene un talento innato para la música.
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.
C1 noun /ɪnˈfɜːməri/

infirmary

hospital
Meaning
A hospital or place where the sick or injured are cared for.
Example
The school had an infirmary for minor injuries.
La escuela tenía un hospital para lesiones menores.
C2 adjective /ɪnˈɛstɪməbl/

inestimable

invaluable
Meaning
Too great or valuable to be measured or estimated.
Example
Her contribution to the project was of inestimable value.
Su contribución al proyecto fue de un valor invaluable.
C1 noun /ˌɪntɪˈmeɪʃən/

intimation

insinuación
Meaning
A subtle or indirect hint or suggestion.
Example
She gave no intimation of her plans.
Ella no dio ninguna insinuación sobre sus planes.
C2 adjective /ɪmˈpælpəbəl/

impalpable

intangible
Meaning
unable to be felt by touch; difficult to grasp or understand
Example
There was an impalpable sense of fear in the room.
Había una sensación intangible de miedo en la habitación.
C1 verb /ɪnˈdʌkt/

induct

admitir formalmente a alguien en una posición, organización o cargo
Meaning
to formally admit someone into a position, organization, or office
Example
She was inducted into the university's honor society.
Ella fue admitida en la sociedad de honor de la universidad.
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.
A2 verb /ˌɪntrəˈduːs/

introduce

presentar
Meaning
to present someone; to bring in for the first time
Example
Let me introduce you to my friend.
Déjame presentarte a mi amigo.
B2 noun /ɪnˈtɛnsəti/

intensity

intensidad
Meaning
The quality of being extreme, strong, or forceful in degree.
Example
The intensity of the storm frightened the villagers.
La intensidad de la tormenta asustó a los aldeanos.
B2 noun ɪnˈsɛntɪvz

incentives

incentivos
Meaning
Things that motivate or encourage one to do something.
Example
Tax incentives are used to encourage investment in renewable energy.
Se utilizan incentivos fiscales para fomentar la inversión en energía renovable.
C1 adjective ˈɪn.tər.ɪm

interim

interino
Meaning
In or for the intervening period; provisional or temporary.
Example
Interim governments manage transitional phases.
Los gobiernos interinos gestionan fases de transición.
A1 pronoun /ɪt/

it

esto
Meaning
used to refer to a thing, animal, or idea previously mentioned or easily identified
Example
It is raining outside.
Está lloviendo afuera.
B2 adjective /ɪmˈpɜːrfɪkt/

imperfect

imperfecto
Meaning
Not perfect; having faults or flaws.
Example
The painting was beautiful despite being imperfect.
La pintura era hermosa a pesar de ser imperfecta.
C1 adjective /ˌɪnɑːrˈtɪkjʊlət/

inarticulate

inarticulado
Meaning
Unable to express oneself clearly or effectively in speech or writing.
Example
She became inarticulate with emotion during the speech.
Ella se volvió inarticulada con emoción durante el discurso.
B1 noun ˌɪndɪˈpendəns

independence

independencia
Meaning
The fact or state of being independent; freedom from outside control; not being subject to another's authority.
Example
Independence inspired the movement.
La independencia inspiró el movimiento.
C1 verb /ɪnˈvɪɡ.ər.eɪt/

invigorate

revitalizar
Meaning
To give strength or energy to someone or something.
Example
A morning walk can invigorate both body and mind.
Una caminata matutina puede revitalizar tanto el cuerpo como la mente.
C2 adjective /ɪnˈsɛptɪv/

inceptive

inicial
Meaning
Relating to or marking the beginning or initial stage of something.
Example
The inceptive phase of the project was marked by enthusiastic planning.
La fase inicial del proyecto fue marcada por una planificación entusiasta.
C2 noun /ˌɪnkənˈɡruːəti/

incongruity

incongruencia
Meaning
The state of being inconsistent or out of place.
Example
The incongruity of his cheerful mood during the funeral shocked everyone.
La incongruencia de su estado de ánimo alegre durante el funeral sorprendió a todos.
B2 noun ˌɪn.təˈven.ʃən

intervention

intervención
Meaning
The action or process of intervening; involvement in a situation to improve or help it.
Example
The intervention of the UN was crucial in resolving the conflict.
La intervención de la ONU fue crucial para resolver el conflicto.
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 adjective /ˌɪrɪˈprəʊtʃəbl̩/

irreproachable

intachable
Meaning
Beyond criticism; faultless.
Example
The judge was known for his irreproachable integrity.
El juez era conocido por su integridad intachable.
C1 adjective /ˈɪntrɪkət/

intricate

intrincado
Meaning
very detailed, complex, and difficult to understand
Example
The artist created an intricate pattern on the wall.
El artista creó un patrón intrincado en la pared.
B2 noun /ˈɪmɪɡrənt/

immigrant

inmigrante
Meaning
a person who comes to live permanently in a foreign country
Example
The city has welcomed many new immigrants this year.
La ciudad ha dado la bienvenida a muchos nuevos inmigrantes este año.
B1 noun ˌɪn.stɪˈtjuː.ʃən

institution

institución
Meaning
An organization founded and united for a specific purpose; an established law, practice, or custom.
Example
Institutions play a crucial role in governance.
Las instituciones desempeñan un papel crucial en la gobernanza.
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.
A2 noun /ˈɪnfoʊ/

info

información
Meaning
information; knowledge or facts about something or someone
Example
She gave me all the info I needed for the meeting.
Ella me dio toda la información que necesitaba para la reunión.
C1 adverb /ɪnˈvɜːrs.li/

Inversely

inversamente; en sentido opuesto
Meaning
in a way that is opposite or contrary; in reverse order or manner
Example
The price of goods is inversely related to their availability in the market.
El precio de los productos está inversamente relacionado con su disponibilidad en el mercado.
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.
C1 verb /ɪnˈfrɪndʒ/

infringe

infringir
Meaning
To actively break the terms of a law, agreement, or right.
Example
Copying this software without permission will infringe copyright laws.
Copiar este software sin permiso infringirá las leyes de derechos de autor.
C1 adjective /ɪnˈfriːkwənt/

infrequent

poco frecuente
Meaning
Happening rarely or not often.
Example
He made infrequent visits to his hometown after moving abroad.
Él hacía visitas poco frecuentes a su ciudad natal después de mudarse al extranjero.
C2 adjective /aɪˈtɪnərənt/

itinerant

itinerante
Meaning
Traveling from place to place, especially for work or duty.
Example
The itinerant teacher moved from village to village to educate children.
El maestro itinerante se movía de pueblo en pueblo para educar a los niños.
C1 verb /ɪˈmɔːrtəlaɪz/

immortalize

inmortalizar
Meaning
to preserve the memory of someone or something forever
Example
The statue was built to immortalize the hero’s sacrifice.
La estatua fue construida para inmortalizar el sacrificio del héroe.
C1 adjective /ɪˈnɔːɡjərəl/

Inaugural

inaugural
Meaning
marking the beginning of something; first; opening
Example
The president delivered his inaugural speech.
El presidente dio su discurso inaugural.
A1 noun /ˌɪnfərˈmeɪʃən/

information

información
Meaning
Facts or knowledge provided or learned about something.
Example
The website provides useful information about travel destinations.
El sitio web proporciona información útil sobre destinos de viaje.
C1 noun /ˈɪŋ.krə.mənt/

Increment

aumento
Meaning
an increase or addition, especially one of a series on a fixed scale; a regular increase in salary
Example
He received an annual increment of five percent in his salary this year.
Recibió un aumento anual del cinco por ciento en su salario este año.
C1 noun /aɪl/

isle

pequeña isla
Meaning
A small island or peninsula, often poetic or literary.
Example
They spent their honeymoon on a beautiful tropical isle.
Pasaron su luna de miel en una hermosa isla tropical.
C1 noun /aɪˈtɪnərɛri/

itinerary

itinerario
Meaning
A planned route or schedule of a journey or trip.
Example
The travel agent gave us a detailed itinerary for our vacation.
El agente de viajes nos dio un itinerario detallado para nuestras vacaciones.
B1 adjective /ɪnˈfɔːrməl/

Informal

informal; relajado; casual
Meaning
relaxed and friendly; not official or ceremonial; casual
Example
The meeting was informal and relaxed.
La reunión fue informal y relajada.
C1 verb /ˈɪnstɪˌɡeɪt/

instigate

incitar
Meaning
To bring about or initiate an action, often something negative.
Example
He was accused of instigating the riot.
Fue acusado de incitar el motín.
C1 noun /ɪmˈprɪzənmənt/

imprisonment

encarcelamiento
Meaning
the act of putting someone in prison; the state of being confined as punishment
Example
He faced imprisonment for violating the court order.
Se enfrentó al encarcelamiento por violar la orden judicial.
C1 adjective /ˌɪnkənˈkluːsɪv/

inconclusive

inconcluso
Meaning
Not leading to a definite result or decision.
Example
The investigation remained inconclusive due to a lack of evidence.
La investigación permaneció inconclusa debido a la falta de evidencia.
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.
B1 adjective /ɪnˈtɜːrnəl/

internal

interno
Meaning
situated inside; relating to the inside or inner part of something
Example
The company is conducting an internal audit this month.
La empresa está realizando una auditoría interna este mes.
C2 adjective ɪˈnɛfəbl

ineffable

inefable
Meaning
Too great or extreme to be expressed or described in words.
Example
The beauty of the landscape was ineffable.
La belleza del paisaje era inefable.
C1 noun /ɪmˈpɛd.ɪ.mənt/

impediment

obstáculo
Meaning
A hindrance or obstruction in doing something; something that prevents progress.
Example
Lack of funds is a major impediment to the project.
La falta de fondos es un gran obstáculo para el proyecto.
C1 noun /ˈɪŋklɪŋ/

inkling

presentimiento
Meaning
A slight idea, hint, or suspicion about something.
Example
She had an inkling that he was planning a surprise.
Ella tenía una ligera sospecha de que él estaba planeando una sorpresa.
C2 adjective /ɪmˈplækəbl/

implacable

implacable
Meaning
unable to be appeased, calmed, or pacified
Example
The soldiers faced an implacable enemy who refused to surrender.
Los soldados se enfrentaron a un enemigo implacable que se negó a rendirse.
B2 adjective /ɪnˈædɪkwət/

inadequate

inadecuado
Meaning
Not sufficient or good enough.
Example
The funding was inadequate to complete the project.
El financiamiento era inadecuado para completar el proyecto.
B1 verb /ɪnˈstɔːl/

install

instalar
Meaning
To place or fix equipment or software so it is ready for use.
Example
He installed the new software on his computer.
Él instaló el nuevo software en su computadora.
C2 noun /ˈɪl.i.æd/

iliad

Ilíada
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.
Los estudiantes estudiaron la Ilíada para entender la mitología griega y el heroísmo.
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.