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C1 adjective /ɪnˈɡreɪnd/

ingrained

arraigado
Meaning
Firmly fixed or established; deeply rooted and difficult to change.
Example
His ingrained habits were hard to break.
Sus hábitos arraigados eran difíciles de romper.
A2 noun /ˌɪnvɪˈteɪʃən/

invitation

felicidad
Meaning
a written or spoken request to attend an event or to participate in something
Example
She sent me an invitation to her wedding.
Ella no pudo ocultar su felicidad cuando recibió el premio.
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 verb /ɪˈreɪdieɪt/

irradiate

irradiar
Meaning
to shine light on something; to expose to radiation; to illuminate or brighten
Example
The scientist used a lamp to irradiate the sample.
El científico usó una lámpara para irradiar la muestra.
C1 adverb /ˌɪnsɪˈdɛntəli/

incidentally

por cierto
Meaning
by the way; used to introduce a remark not directly related to the main subject
Example
Incidentally, did you know that she studied in Paris?
Por cierto, ¿sabías que estudió en París?
C1 adjective /ˌɪnɪkˈskjuːzəbl/

inexcusable

inexcusable
Meaning
Too bad to be justified or overlooked; unforgivable.
Example
His rude behavior was inexcusable.
Su comportamiento grosero era inexcusable.
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.
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.
C1 adjective ˌɪn.trəˈspek.tɪv

introspective

introspectivo
Meaning
Characterized by or given to introspection; examining one's own thoughts and feelings.
Example
Writers tend to be highly introspective individuals.
Los escritores tienden a ser individuos altamente introspectivos.
B1 noun /ˈɪnpʊt/

input

entrada, información proporcionada
Meaning
information, advice, or data that is put into a system, device, or process
Example
The manager asked for everyone's input on the new project.
El gerente pidió la opinión de todos sobre el nuevo proyecto.
C2 noun /ˈɪn.tɪ.ɡreɪ.tɪv dɪˈpləʊ.mə.si/

integrative diplomacy

diplomacia integradora
Meaning
A diplomatic approach that seeks to combine or coordinate different elements, interests, or parties into a unified whole.
Example
Integrative diplomacy strengthens alliances.
La diplomacia integradora fortalece las alianzas.
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 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.
B2 noun /ˈɪn.flu.ən.sər/

Influencer

influenciador, persona que promueve productos
Meaning
A person with the ability to influence potential buyers of a product or service by promoting or recommending the items on social media.
Example
Social media influencers shape consumer preferences.
Los influencers de las redes sociales moldean las preferencias de los consumidores.
C1 noun /ɪˌreɡjəˈlærɪti/

irregularity

irregularidad
Meaning
lack of regularity or consistency; a deviation from what is normal, expected, or orderly
Example
The audit revealed several financial irregularities in the company’s records.
La auditoría reveló varias irregularidades financieras en los registros de la empresa.
C1 noun /ɪmˈpɒs.tər/

Impostor

impostor; fraude
Meaning
a person who pretends to be someone else in order to deceive others; a fraud
Example
The impostor convinced everyone he was a doctor until his fake credentials were discovered.
El impostor convenció a todos de que era un doctor hasta que se descubrió que sus credenciales eran falsas.
B2 noun /ɪnˈtɪəriər/

interior

interior
Meaning
the inside part of something; inner area of a place or object
Example
The interior of the hotel was beautifully decorated.
El interior del hotel estaba bellamente decorado.
C1 verb /ˌɪn.trəˈspekt/

introspect

introspectar
Meaning
To examine one's own thoughts, feelings, or mental state.
Example
He often introspects before making important decisions.
Él a menudo se introspecta antes de tomar decisiones importantes.
C1 adjective /ˌɪnədˈvaɪzəbl/

inadvisable

desaconsejable
Meaning
Not recommended; likely to have undesirable consequences.
Example
It is inadvisable to drive in such heavy rain.
No es recomendable conducir bajo tal lluvia intensa.
B2 verb /ɪnˈsʌlt/

insult

insultar
Meaning
to speak or act in a way that hurts someone's feelings or shows disrespect
Example
He felt insulted by her rude comments.
Él se sintió insultado por sus comentarios groseros.
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 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.
B2 adjective /ˌɪnəˈproʊpriət/

inappropriate

inapropiado
Meaning
not suitable or proper in the circumstances
Example
It was inappropriate to talk loudly in the library.
Era inapropiado hablar en voz alta en la biblioteca.
C1 noun /ˌɪnkəmˈpliːtnəs/

incompleteness

incompletitud
Meaning
the state of not being complete or whole; lack of necessary parts or fullness
Example
The incompleteness of the report caused delays in the project.
La incompletitud del informe causó retrasos en el proyecto.
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 verb /ɪˈniː.bri.eɪt/

inebriate

embriagar
Meaning
to intoxicate; to make someone drunk
Example
The strong wine was enough to inebriate even the most experienced drinker.
El vino fuerte fue suficiente para embriagar incluso al bebedor más experimentado.
C1 adjective ɪˈluː.sər.i

illusory

ilusorio
Meaning
Based on illusion; not real although seeming to be.
Example
His sense of security was entirely illusory.
Su sensación de seguridad era completamente ilusoria.
C2 adjective /ˌɪrɪˈlɪdʒəs/

irreligious

irreligioso
Meaning
Indifferent or hostile to religion
Example
Some people in the community consider him irreligious because he never attends religious services.
Algunas personas en la comunidad lo consideran irreligioso porque nunca asiste a los servicios religiosos.
C2 noun /ɪnˈfrækʃən/

infraction

infracción
Meaning
A violation or breach of a rule, law, or agreement.
Example
The student was punished for a minor infraction of the school rules.
El estudiante fue castigado por una infracción menor de las reglas escolares.
C2 adjective /ˈɪmənənt/

immanent

inmanente
Meaning
existing or operating within; inherent
Example
He believed that moral values are immanent in human nature.
Él creía que los valores morales son inmanentes en la naturaleza humana.
C1 verb /ɪmˈbɛd/

imbed

incrustar
Meaning
To fix firmly or deeply in a surrounding mass.
Example
The journalist imbedded himself with the troops to report firsthand.
El periodista se incrustó con las tropas para reportar de primera mano.
C1 adjective /ɪˈniː.bri.eɪ.tɪd/

inebriated

ebrio
Meaning
under the influence of alcohol; drunk
Example
He stumbled into the room completely inebriated.
Entró en la habitación completamente ebrio.
C1 adverb /ˌɪn.dɪˈskrɪm.ɪ.nət.li/

Indiscriminately

indiscriminadamente
Meaning
without making careful distinctions; randomly; without discrimination
Example
The company fired employees indiscriminately without considering their performance.
La empresa despidió a los empleados indiscriminadamente sin considerar su rendimiento.
C2 verb /ɪnˈɡreɪʃiˌeɪt/

ingratiate

ganarse el favor de
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.
Ella intentó ingraciarse con su jefe al elogiarlo con frecuencia.
C1 noun /ˌɪmpɔːrˈteɪʃən/

importation

importación
Meaning
The act of bringing goods or services into a country from abroad
Example
The importation of luxury goods is strictly regulated.
La importación de productos de lujo está estrictamente regulada.
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.
B2 noun /ˌaɪ.səˈleɪ.ʃən/

Isolation

aislación
Meaning
the process or fact of isolating or being isolated; separation from other people or things
Example
The patient was kept in isolation to prevent the spread of the infectious disease.
El paciente fue mantenido en aislamiento para prevenir la propagación de la enfermedad infecciosa.
C1 adjective ɪmˈpɛkəbl

impeccable

impecable
Meaning
In accordance with the highest standards; faultless.
Example
His impeccable taste in fashion was admired by all his peers.
Su impecable gusto en la moda fue admirado por todos sus compañeros.
A1 pronoun /ɪts/

its

su
Meaning
Belonging to or associated with a thing previously mentioned.
Example
The company changed its logo last year.
La compañía cambió su logo el año pasado.
C1 adjective /ɪˈnænɪmət/

inanimate

objeto inanimado
Meaning
not alive, especially not in the manner of animals and humans; lifeless
Example
The museum was full of inanimate objects from ancient times.
El museo estaba lleno de objetos inanimados de tiempos antiguos.
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 noun /ˈɪnsələns/

insolence

insolencia
Meaning
rude or disrespectful behavior
Example
The teacher was shocked by the student's insolence.
El maestro se sorprendió por la insolencia del estudiante.
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.
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.
C2 verb /ɪnˈfætʃueɪt/

infatuate

embelesar
Meaning
to inspire with an intense but short-lived passion or admiration
Example
He was infatuated with her beauty.
Él estaba fascinado por su belleza.
C1 adjective /ɪmˈpɜːrtɪnənt/

impertinent

impertinente
Meaning
rude and showing a lack of respect
Example
It was impertinent of him to question the manager's decision.
Fue impertinente de su parte cuestionar la decisión del gerente.
B1 verb ɪnˈvɛst

invest

invertir
Meaning
To put money, effort, time, etc. into something to make a profit or get an advantage.
Example
Investing in intellectual property can generate passive income.
Invertir en propiedad intelectual puede generar ingresos pasivos.
C1 noun /ɪnˈfɜːrnoʊ/

inferno

incendio
Meaning
a large, intense fire that is dangerously out of control
Example
The building turned into an inferno within minutes.
El edificio se convirtió en un incendio en minutos.
C2 noun /ˌɪmprəˈsɑːrioʊ/

impresario

productor
Meaning
A person who organizes or finances concerts, plays, or operas.
Example
The impresario arranged a series of concerts for the rising star.
El impresario organizó una serie de conciertos para la estrella emergente.
B1 noun /ɪnˈtɛnʃən/

intention

intención
Meaning
A plan, aim, or purpose behind an action.
Example
Her intention was to finish the project before the deadline.
Su intención era terminar el proyecto antes de la fecha límite.
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.
B2 noun /ɪnˈtɒlərəns/

intolerance

intolerancia
Meaning
unwillingness to accept or endure beliefs, behaviors, or conditions different from one's own
Example
The leader was criticized for his intolerance toward other religions.
El líder fue criticado por su intolerancia hacia otras religiones.
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.
A2 adjective, noun /ɪˈtæliən/

italian

felicidad
Meaning
relating to Italy, its people, or its language; a person from Italy
Example
She loves Italian food.
Ella no pudo esconder su felicidad cuando recibió el premio.
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 noun /ˌɪnkænˈdɛsəns/

incandescence

incandescencia
Meaning
the emission of light from a hot object; brilliance
Example
The incandescence of the candle filled the dark room.
La incandescencia de la vela llenó la habitación oscura.
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.
B1 noun /ɪˌmædʒ.ɪˈneɪ.ʃən/

Imagination

imaginación; facultad creativa
Meaning
the faculty or action of forming new ideas or images not present to the senses; creative thinking
Example
Children's imagination allows them to turn a cardboard box into a spaceship or castle.
La imaginación de los niños les permite convertir una caja de cartón en una nave espacial o castillo.
C1 verb /ˌɪnstɪˈtjuːʃənəlaɪz/

institutionalize

institucionalizar
Meaning
to establish something as a formal institution, custom, or practice
Example
The government seeks to institutionalize environmental protection.
El gobierno busca institucionalizar la protección ambiental.
C1 adjective /ˌɪnkəmˈpætəbl/

incompatible

incompatible
Meaning
Not able to exist or work together without conflict.
Example
Their personalities were completely incompatible.
Sus personalidades eran completamente incompatibles.
B2 noun /ˌɪnsɪˈkjʊərɪti/

insecurity

inseguridad
Meaning
lack of confidence or assurance; a state of uncertainty or vulnerability
Example
Her insecurity made her doubt her abilities despite her experience.
Su inseguridad la hizo dudar de sus habilidades.
A2 verb /ɪnˈkri:s/

increase

aumentar
Meaning
to become or make something larger in amount, number, or degree
Example
The company plans to increase its production this year.
La empresa planea aumentar su producción este año.
C2 adjective /ɪnˈdɛkərəs/

indecorous

indecoroso
Meaning
Not in keeping with good taste and propriety; improper.
Example
His indecorous behavior shocked the audience.
Su comportamiento indecoroso sorprendió a la audiencia.
C1 adjective ɪnˈsaɪ.sɪv

incisive

incisivo
Meaning
Intelligently analytical and clear-thinking; showing clear thought and good understanding of what is important.
Example
His incisive comments revealed the core issues.
Sus comentarios incisivos revelaron los problemas clave.
C1 noun /ɪnˌtɪmɪˈdeɪʃən/

intimidation

intimidación
Meaning
The action of frightening or threatening someone to make them do something.
Example
The workers reported cases of intimidation by the management.
Los trabajadores informaron casos de intimidación por parte de la administración.
B2 verb /ˌɪntərˈviːn/

intervene

intervenir
Meaning
To come between people, groups, or events, often to prevent conflict or improve a situation.
Example
The teacher had to intervene to stop the fight between the students.
La maestra tuvo que intervenir para detener la pelea entre los estudiantes.
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.
C1 noun ˌɪntədɪˈpɛndənsi

interdependency

interdependencia
Meaning
The dependence of two or more people or things on each other.
Example
The interdependency of the countries led to greater cooperation.
La interdependencia de los países llevó a una mayor cooperación.
C2 noun /aɪˈdɒlətri/

idolatry

idolatría
Meaning
The worship of idols or extreme admiration for someone or something.
Example
The priest condemned the idolatry practiced in the village.
El sacerdote condenó la idolatría practicada en el pueblo.
B2 adverb /ɪmˈpeɪʃəntli/

impatiently

impacientemente
Meaning
in a manner showing annoyance or restlessness due to delay or waiting
Example
She tapped her fingers impatiently while waiting for the reply.
Ella tamborileó los dedos impacientemente mientras esperaba la respuesta.
B2 verb aɪˈdɛntɪfaɪd

identified

identificado
Meaning
To recognize or establish who or what someone or something is.
Example
The root causes of the issue need to be identified.
Las causas raíz del problema deben ser identificadas.
B1 noun ɪmˈpruːv.mənts

improvements

mejoras
Meaning
The action of making or becoming better; an instance of something becoming or being made better.
Example
Continuous improvements increase productivity.
Las mejoras continuas aumentan la productividad.
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.
B2 adjective, noun /ɪzˈreɪli/

israeli

israelí
Meaning
relating to Israel or its people; a person from Israel
Example
She works for an Israeli company.
Ella trabaja para una empresa israelí.
B2 adjective /ˌɪd.iˈɒt.ɪk/

Idiotic

idiota
Meaning
extremely stupid; foolish; senseless
Example
His idiotic behavior embarrassed everyone at the meeting.
Su comportamiento idiota avergonzó a todos en la reunión.
C2 adjective /ˌɪnæprɪˈhɛnsəbl/

inapprehensible

incomprensible
Meaning
not understandable; incomprehensible
Example
The concept was so abstract that it seemed inapprehensible to most students.
El concepto era tan abstracto que parecía incomprensible para la mayoría de los estudiantes.
B2 noun /ɪnˈveɪʒən/

invasion

invasión
Meaning
An instance of invading a country, region, or personal space with armed force or unwelcome presence.
Example
The army prepared for the possibility of an invasion.
El ejército se preparó para la posibilidad de una invasión.
C1 noun ɪnˈsɒl.vən.si

insolvency

insolvencia
Meaning
The state of being unable to pay debts owed; bankruptcy.
Example
The company declared insolvency after years of losses.
La empresa declaró la insolvencia después de años de pérdidas.
C2 noun /ˈɪntəˌkrɒpɪŋ/

intercropping

cultivo intercalado
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.
El cultivo intercalado puede ayudar a mejorar la fertilidad del suelo y el control de plagas.
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.
C1 verb /aɪˈdiː.ə.laɪz/

idealize

idealizar
Meaning
To regard or represent something as perfect or better than it really is.
Example
Children often idealize their parents.
Los niños a menudo idealizan a sus padres.
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 noun /ˌɪməˈrælɪti/

immorality

inmoralidad
Meaning
the quality of being immoral; behavior that violates accepted moral standards
Example
The community condemned the immorality of the corrupt officials.
La comunidad condenó la inmoralidad de los funcionarios corruptos.
B2 adjective /ˈɪmɪnənt/

imminent

inminente
Meaning
About to happen; likely to occur very soon.
Example
Dark clouds signaled that a storm was imminent.
Las nubes oscuras señalaron que una tormenta era inminente.
B2 verb /ˌɪntərˈfɪər/

interfere

felicidad
Meaning
to become involved in something that is not your concern; to hinder or obstruct
Example
Parents should not interfere in their children’s personal choices.
No pudo ocultar su felicidad cuando recibió el premio.
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.
B2 noun /ɪnˈspɛktər/

inspector

inspector
Meaning
An official employed to ensure regulations are obeyed or standards are met.
Example
The inspector carefully checked the restaurant's kitchen for hygiene standards.
El inspector revisó cuidadosamente la cocina del restaurante para cumplir con los estándares de higiene.
C1 adjective /ɪnˈdɪɡnənt/

indignant

indignado
Meaning
Feeling or showing anger at something considered unfair or unjust.
Example
She was indignant when accused of cheating.
Ella estaba indignada cuando la acusaron de hacer trampa.
C2 adjective /ˌɪnˈekspɜːrt/

inexpert

inexperto
Meaning
not skilled or experienced; lacking expertise
Example
The inexpert handling of the machine caused several mistakes.
El manejo inexperto de la máquina causó varios errores.
B2 noun /ɪˈluː.ʒən/

Illusion

ilusión
Meaning
a thing that is or is likely to be wrongly perceived or interpreted; a false idea or belief
Example
The magician created a spectacular illusion that made the elephant appear to vanish.
El mago creó una espectacular ilusión que hizo que el elefante pareciera desvanecerse.
C2 adjective /ˌɪnkəmˈbʌstəbl/

incombustible

incombustible
Meaning
Not capable of catching fire or burning.
Example
This material is incombustible and safe for construction.
Este material es incombustible y seguro para la construcción.
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.
B2 noun /aɪˈdiː/

id

identificación
Meaning
identification; a document or number used to prove who someone is
Example
Please show your ID at the entrance.
Por favor, muestre su identificación en la entrada.
B2 noun /ɪnˈsen.tɪv/

Incentive

incentivo; estímulo
Meaning
a thing that motivates or encourages someone to do something; a reward or penalty that influences behavior
Example
The company offered a cash incentive to employees who exceeded their sales targets.
La empresa ofreció un incentivo en efectivo a los empleados que superaron sus objetivos de ventas.
C1 adjective /ˌɪnɪkˈsplɪkəbl/

inexplicable

inexplicable
Meaning
Impossible to explain or understand.
Example
The sudden disappearance of the file was inexplicable.
La repentina desaparición del archivo fue inexplicable.
C2 adjective /ɪnˈdjuːbɪtəbl/

indubitable

indudable
Meaning
Impossible to doubt; unquestionable.
Example
It is indubitable that hard work leads to success.
Es indudable que el trabajo duro lleva al éxito.
B2 verb /ɪnˈtɛnsɪfaɪ/

intensify

intensificar
Meaning
To make something stronger, more extreme, or more forceful.
Example
The storm is expected to intensify overnight.
Se espera que la tormenta se intensifique durante la noche.
C1 adjective /ɪmˈpæʃənd/

impassioned

apasionado
Meaning
Filled with or showing great emotion.
Example
She gave an impassioned speech about human rights.
Ella dio un discurso apasionado sobre los derechos humanos.
C1 adjective /ˌaɪ.di.əˈlɒdʒ.ɪ.kəl/

ideological

ideológico
Meaning
Relating to or based on a system of ideas or beliefs.
Example
The two parties are divided by deep ideological differences.
Las dos partes están divididas por profundas diferencias ideológicas.
B1 adjective /ɪmˈpruːvd/

improved

mejorado
Meaning
made better or enhanced in quality or condition
Example
Her health has significantly improved since last month.
Su salud ha mejorado significativamente desde el mes pasado.
B2 noun /ɪnˈfek.ʃən/

Infection

infección
Meaning
the process of infecting or the state of being infected; a disease caused by germs
Example
The doctor prescribed antibiotics to treat the bacterial infection in her throat.
El doctor recetó antibióticos para tratar la infección bacteriana en su garganta.
C1 verb /ˌɪntərˈsɛpt/

intercept

interceptar
Meaning
to stop, catch, or seize something on its way from one place to another
Example
The police intercepted the stolen car before it crossed the border.
La policía interceptó el coche robado antes de que cruzara la frontera.
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.
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.
B2 noun ˈɪn.frəˌstrʌk.tʃər

infrastructure

infraestructura
Meaning
The basic physical and organizational structures and facilities needed for the operation of a society or enterprise.
Example
Digital infrastructure is vital for future advancements.
La infraestructura digital es vital para los avances futuros.
A2 adjective /ɪnˈtɛlɪdʒənt/

intelligent

inteligente
Meaning
Having or showing high mental capacity, quick to learn and understand.
Example
She is one of the most intelligent students in the class.
Ella es una de las estudiantes más inteligentes de la clase.
C1 noun /ˌɪnsəˈfɪʃənsi/

insufficiency

insuficiencia
Meaning
The state of not being enough or not being adequate.
Example
The project failed due to the insufficiency of funds.
El proyecto falló debido a la insuficiencia de fondos.
C1 adjective /ˌɪntəˈrɑːɡətɪv/

interrogative

interrogativo
Meaning
Relating to or conveying a question; in grammar, used to form questions.
Example
She raised an interrogative eyebrow when she heard the news.
Ella levantó una ceja interrogativa cuando escuchó la noticia.
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.
C1 noun /ˌɪntəkəˈnɛktɪvɪti/

interconnectivity

interconectividad
Meaning
The state of being interconnected or the degree of connectivity between components
Example
The rise of interconnectivity has transformed global communication.
El auge de la interconectividad ha transformado la comunicación global.
C1 noun ˌɪndɪˈspensəbl səˈpɔːrt

indispensable support

apoyo indispensable
Meaning
Essential assistance that cannot be done without; absolutely necessary help.
Example
Volunteers provide indispensable support to communities.
Los voluntarios proporcionan apoyo indispensable a las comunidades.
B2 noun /ˈɪnfənt/

infant

bebé
Meaning
A very young child or baby.
Example
The infant was sleeping peacefully in the cradle.
El bebé estaba durmiendo tranquilamente en la cuna.
C1 noun ˌɪn.ɪˈfɪʃ.ən.si

inefficiency

ineficiencia
Meaning
The state or quality of not achieving maximum productivity; failure to make the best use of time or resources.
Example
Government inefficiency leads to slow project completion.
La ineficiencia del gobierno conduce a una finalización lenta del proyecto.
C1 noun /ˌɪntərˌɒpərəˈbɪləti/

interoperability

interoperabilidad
Meaning
The ability of computer systems or software to exchange and make use of information.
Example
The interoperability of different software systems ensures seamless workflow.
La interoperabilidad de diferentes sistemas de software asegura un flujo de trabajo continuo.
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.
C1 adjective /aɪˈreɪt/

irate

iracundo
Meaning
Extremely angry.
Example
The customer became irate after waiting for hours.
El cliente se puso iracundo después de esperar durante horas.
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.
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.
C1 adjective ˈɪn.lənd

Inland

del interior
Meaning
Situated in the interior of a country; away from the coast.
Example
Inland transport boosts local trade.
El transporte del interior impulsa el comercio local.
C1 noun/verb /ˈɪnsɛns/

incense

incienso / enfurecer
Meaning
a substance burned for its sweet smell (noun); to make very angry (verb)
Example
The smell of incense filled the temple, but his rude words incensed her.
El olor del incienso llenó el templo, pero sus palabras groseras la enfurecieron.
C1 verb /ɪnˈfjʊərieɪt/

infuriate

enfurecer
Meaning
To make someone extremely angry.
Example
His careless remarks infuriated the entire team.
Sus comentarios descuidados enfurecieron a todo el equipo.