interrogative
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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 noun /ˌɪm.pəˈzɪʃ.ən/

Imposition

imposición; carga; demanda injusta
Meaning
the action or process of imposing something or of being imposed; an unfair burden or demand
Example
The imposition of new taxes without consultation angered the citizens greatly.
La imposición de nuevos impuestos sin consulta enfureció enormemente a los ciudadanos.
C1 adjective /ɪˈræʃənəl/

irrational

irracional
Meaning
not logical or reasonable; lacking clear thought
Example
His fear of the dark was completely irrational.
Su miedo a la oscuridad era completamente irracional.
C1 adjective /ɪnˈdʒʊəriəs/

injurious

perjudicial
Meaning
Causing or likely to cause harm or damage.
Example
Smoking is injurious to health.
Fumar es perjudicial para la salud.
C1 adjective /ˌɪməˈtɪəriəl/

immaterial

inmaterial
Meaning
Not important or relevant; lacking physical substance.
Example
The judge ruled that the argument was immaterial to the case.
El juez falló que el argumento no era relevante para el caso.
A2 noun /ˈɪm.ɪdʒ/

Image

imagen; figura; representación
Meaning
a representation of the external form of a person or thing in art; a mental picture or impression
Example
The company worked hard to improve its public image after the scandal.
La empresa trabajó duro para mejorar su imagen pública después del escándalo.
B2 noun ˌɪn.əˈveɪ.ʃən

innovation

innovación
Meaning
The action or process of innovating; a new method, idea, product, etc.
Example
Innovation drives solutions to global challenges.
La innovación impulsa soluciones a los desafíos globales.
C1 noun /ɪnˈdem.nə.ti/

Indemnity

indemnización
Meaning
security or protection against a loss or other financial burden; compensation for damage or loss
Example
The insurance company provided full indemnity for the damages caused by the flood.
La compañía de seguros proporcionó indemnización completa por los daños causados por la inundación.
B2 noun /ɪnˈhæbɪtənt/

inhabitant

habitante
Meaning
a person or animal that lives in a particular place
Example
The inhabitants of the village rely on farming for their livelihood.
Los habitantes del pueblo dependen de la agricultura para su sustento.
C1 adjective /ɪnˈkɒmp(ə)rəbl/

incomparable

incomparable
Meaning
Without an equal in quality or excellence; matchless.
Example
The view from the mountain was incomparable.
La vista desde la montaña era incomparable.
C1 adjective /ɪmˈpæsɪv/

impassive

impasible
Meaning
Not showing or feeling emotion; expressionless.
Example
Despite the shocking news, she remained impassive.
A pesar de las noticias impactantes, ella permaneció impasible.
C2 noun /ˈɪsməs/ or /ˈɪsθməs/

isthmus

istmo
Meaning
A narrow strip of land connecting two larger land areas, often with water on either side.
Example
The Panama Canal cuts through the Isthmus of Panama.
El Canal de Panamá corta a través del Istmo de Panamá.
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.
C2 noun /ɪnˈtɜːrmənt/

interment

entierro
Meaning
The act of burying a dead body in a grave or tomb.
Example
The interment took place at the family cemetery.
El entierro tuvo lugar en el cementerio familiar.
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 /ɪˈlɪmɪtəbl/

illimitable

ilimitado
Meaning
Without limits or bounds.
Example
The universe is often described as illimitable.
El universo a menudo se describe como ilimitado.
C1 adjective /ɪmˈpɑːrʃəl/

Impartial

imparcial; neutral
Meaning
treating all sides fairly; unbiased; neutral
Example
A good judge must remain impartial throughout the trial.
Un buen juez debe mantenerse imparcial durante todo el juicio.
C2 noun /ɪnˈfriːkwəns/

infrequence

infrecuencia
Meaning
The state of occurring rarely or at long intervals.
Example
The infrequence of their meetings made it hard to maintain close ties.
La infrecuencia de sus reuniones hacía difícil mantener vínculos cercanos.
C1 adjective /ˌɪndɪˈskrɪmɪnət/

indiscriminate

indiscriminado
Meaning
Done without careful judgment; random or haphazard.
Example
The indiscriminate use of pesticides harms the environment.
El uso indiscriminado de pesticidas daña el medio ambiente.
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.
B2 adjective /ɪnˈfekʃəs/

infectious

infeccioso
Meaning
capable of causing infection or disease; spreading easily from one person to another; able to spread feelings or attitudes such as enthusiasm
Example
Her infectious laughter made everyone in the room smile.
Su risa infecciosa hizo sonreír a todos.
B2 adjective /ɪnˈklaɪnd/

inclined

inclinada
Meaning
having a tendency or disposition toward something
Example
He is inclined to help those in need.
Él está inclinado a ayudar a los necesitados.
C1 verb /ɪnˈvælɪdeɪt/

invalidate

invalidar
Meaning
To make something not valid or legally acceptable.
Example
The new evidence may invalidate the previous ruling.
La nueva evidencia puede invalidar el fallo anterior.
C1 noun /ɪnˈɛk.wɪ.ti/

inequity

inequidad
Meaning
Lack of fairness or justice; unequal distribution or treatment.
Example
Social inequity continues to be a global issue.
La inequidad social sigue siendo un problema global.
C2 verb /aɪˈdɒləˌtraɪz/

idolatrize

idolatrar
Meaning
To worship idols; to regard with excessive devotion or admiration.
Example
They began to idolatrize the statue as a deity.
Comenzaron a idolatrar la estatua como una deidad.
C1 verb /ɪnˈtɒksɪkeɪt/

intoxicate

felicidad
Meaning
to make someone lose control of their faculties or behavior due to alcohol or drugs
Example
The strong drink quickly intoxicated him.
No pudo esconder su felicidad cuando recibió el premio.
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.
A2 noun /ɪŋk/

Ink

tinta
Meaning
a colored fluid used for writing, drawing, or printing; a dark liquid ejected by cuttlefish
Example
The old fountain pen leaked ink all over his white shirt during the meeting.
El viejo bolígrafo perdió tinta por toda su camisa blanca durante la reunión.
B1 verb /ɪnˈvɑːlv/

involve

involucrar
Meaning
to include as a necessary part, or to engage someone in an activity
Example
The project will involve several departments working together.
El proyecto involucrará varios departamentos trabajando juntos.
B2 verb /ɪnˈtriːɡ/

intrigue

intrigar
Meaning
to arouse curiosity or interest; to make someone fascinated
Example
The mystery novel will intrigue any reader.
La novela de misterio intriga a cualquier lector.
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 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.
C1 noun /ˌɪnflɛksɪˈbɪlɪti/

inflexibility

inflexibilidad
Meaning
the quality of being rigid or unwilling to change; lack of adaptability
Example
The inflexibility of the rules caused unnecessary delays.
La inflexibilidad de las reglas causó retrasos innecesarios.
B2 adjective /ɪˈmɒrəl/

immoral

inmoral
Meaning
Not conforming to accepted standards of morality; unethical or wicked.
Example
He was fired for his immoral behavior.
Lo despidieron por su comportamiento inmoral.
B2 adjective /ɪnˈsɛnsətɪv/

insensitive

insensible
Meaning
Showing or feeling no concern for others' feelings.
Example
His insensitive comment hurt her deeply.
Su comentario insensible la lastimó profundamente.
C2 noun /ˌɪnvəˈkeɪʃən/

invocation

invocación
Meaning
the act of calling upon a higher power for help, blessing, or inspiration
Example
The ceremony began with an invocation to the gods.
La ceremonia comenzó con una invocación a los dioses.
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.
C1 adjective /ɪmˈpɛn.ɪ.trə.bəl/

impenetrable

impenetrable
Meaning
Impossible to pass through or enter; impossible to understand.
Example
The dense forest was nearly impenetrable.
El bosque denso era casi impenetrable.
B2 noun, verb /ˈɪnstɪˌtjuːt/

institute

institución
Meaning
as a noun, an organization founded for a specific purpose; as a verb, to establish or initiate
Example
The university decided to institute new rules for the library.
La universidad decidió instituir nuevas reglas para la biblioteca.
C1 adjective /ɪmˈpjʊər/

Impure

impuro
Meaning
contaminated; not clean; mixed with foreign substances
Example
The impure water caused health problems in the village.
El agua impura causó problemas de salud en el pueblo.
C1 noun /ˌɪrɪˌspɒnsəˈbɪləti/

irresponsibility

irresponsabilidad
Meaning
lack of responsibility or accountability; failure to act in a reliable or sensible way
Example
The accident was caused by his irresponsibility at work.
El accidente fue causado por su irresponsabilidad en el trabajo.
B2 noun /ˌɪn.dɪˈkeɪ.ʃən/

Indication

indicación; señal
Meaning
a sign or piece of information that indicates something; a suggestion or hint
Example
The dark clouds were a clear indication that a storm was approaching the area.
Las nubes oscuras eran una clara indicación de que una tormenta se acercaba al área.
C1 adjective /ɪnˈdʌktɪv/

inductive

inductivo
Meaning
characterized by the inference of general laws from particular instances; reasoning from specific cases to general principles
Example
The scientist used inductive reasoning to form a hypothesis.
El científico usó razonamiento inductivo para formular una hipótesis.
A2 adjective /ɪmˈpɑːsəbl/

impossible

imposible
Meaning
not able to occur, exist, or be done
Example
It is impossible to finish this work in one day.
Es imposible terminar este trabajo en un día.
B2 adjective /ˌɪnkəmˈpliːt/

incomplete

incompleto
Meaning
Not finished, lacking some parts or not whole.
Example
Her report was incomplete and needed further details.
Su informe estaba incompleto y necesitaba más detalles.
C1 adjective /ɪnˈsteɪbəl/

instable

inestable
Meaning
not stable; liable to change, collapse, or fail; lacking firmness or reliability
Example
The instable political situation worried foreign investors.
La situación política inestable preocupó a los inversores extranjeros.
B1 adjective /ˌɪmpəˈlaɪt/

impolite

grosero
Meaning
Not showing good manners; rude.
Example
It is impolite to interrupt someone while they are speaking.
Es grosero interrumpir a alguien mientras está hablando.
C1 adjective /ˌɪrɪˈprɛsəbl̩/

irrepressible

irresistible
Meaning
Impossible to control or restrain.
Example
She had an irrepressible urge to laugh during the speech.
Ella no pudo ocultar su irresistible deseo de reír durante el discurso.
C2 verb /ɪnˈveɪ/

inveigh

criticar duramente
Meaning
To speak or write about something with great hostility and criticism.
Example
He inveighed against the corruption in government.
Él criticó duramente la corrupción en el gobierno.
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 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 /ɪnˈvɑːlənˌtɛri/

involuntary

involuntario
Meaning
done without will or conscious control
Example
He gave an involuntary shiver when he heard the loud noise.
Él dio un escalofrío involuntario cuando escuchó el ruido fuerte.
C2 adjective /ˌɪnsəˈprɛsəbl/

insuppressible

irreprimible
Meaning
That cannot be suppressed or restrained.
Example
She had an insuppressible urge to laugh during the ceremony.
Ella tenía un impulso irreprimible de reír durante la ceremonia.
C1 noun ɪnˈdɪdʒɪnəs trəˈdɪʃənz

Indigenous Traditions

Tradiciones indígenas
Meaning
Cultural practices, beliefs, and customs that have been passed down through generations among native peoples.
Example
Indigenous traditions in the Chittagong Hill Tracts are unique.
Las tradiciones indígenas en los Chittagong Hill Tracts son únicas.
B1 verb /aɪˈdentɪfaɪ/

identify

identificar
Meaning
to recognize; to establish who someone is
Example
Can you identify the suspect?
¿Puedes identificar al sospechoso?
C1 adjective /ˌɪmprɪˈsaɪs/

imprecise

impreciso
Meaning
Not exact or accurate; vague.
Example
His explanation was too imprecise to be helpful.
Su explicación era demasiado imprecisa para ser útil.
B2 verb /ɪnˈdʒɛkt/

inject

inyectar
Meaning
To introduce a substance, especially a drug, into the body using a needle.
Example
The nurse will inject the vaccine into the patient's arm.
La enfermera inyectará la vacuna en el brazo del paciente.
C2 adjective /ɪnˈæpt/

Inapt

inadecuado; inapropiado; impropio
Meaning
not suitable; inappropriate; unfit
Example
His comment was inapt for the formal meeting.
Su comentario fue inapropiado para la reunión formal.
C1 adjective /ɪˈmjuː.tə.bəl/

immutable

inmutable
Meaning
Unchangeable, permanent, or fixed
Example
The laws of physics are considered immutable.
Las leyes de la física son consideradas inmutables.
C1 adjective /ɪˈmuː.və.bəl/

immovable

inmóvil
Meaning
Not able to be moved; fixed in position.
Example
Immovable barriers prevent change.
Las barreras inmóviles impiden el cambio.
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.
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.
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.
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 adjective /ɪnˈseɪʃiət/

insatiate

insaciable
Meaning
impossible to satisfy; always wanting more
Example
He had an insatiate desire for power.
Él tenía un deseo insaciable de poder.
C1 adjective /ɪnˈhɪbɪtɪd/

inhibited

inhibido
Meaning
Unable to act in a relaxed and natural way, especially due to self-consciousness or restraint.
Example
He was too inhibited to express his true feelings.
Él estaba demasiado inhibido para expresar sus verdaderos sentimientos.
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.
A2 noun/verb /ˈɪntrəst/ or /ˈɪntəˌrɛst/

interest

interés / interés financiero
Meaning
A feeling of curiosity or concern about something; or money paid for the use of borrowed money.
Example
He showed great interest in learning new languages.
Él mostró un gran interés en aprender nuevos idiomas.
B2 adjective /ˈɪnˌsaɪtfəl/

insightful

perspicaz
Meaning
Showing deep understanding or perceptiveness.
Example
The professor gave an insightful lecture on global economics.
El profesor dio una conferencia perspicaz sobre la economía global.
C1 noun /ɪnˈsaɪtmənt/

incitement

incitación
Meaning
the action of provoking unlawful or violent behavior
Example
He was arrested for incitement to riot.
Fue arrestado por incitación a la violencia.
C1 noun /ˌɪn.dʒəˈnjuː.ɪ.ti/

ingenuity

ingenio
Meaning
The quality of being clever, original, and inventive.
Example
His ingenuity led to groundbreaking innovations.
Su ingenio llevó a innovaciones pioneras.
B1 noun /ɪnˈɡriːdiənt/

ingredient

ingrediente
Meaning
A component part or element of something, especially in a recipe.
Example
Flour is a key ingredient in baking bread.
La harina es un ingrediente clave en la preparación del pan.
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.
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.
B2 verb /ɪnˈsɜːrt/

insert

insertar
Meaning
to put or place something into something else
Example
Please insert the key into the lock.
por favor inserte la llave en la cerradura.
C2 adjective /ɪˈnjʊərd/

inured

acostumbrado
Meaning
Accustomed to something, especially something unpleasant.
Example
After years of hardship, she was inured to suffering.
Después de años de sufrimiento, ella estaba acostumbrada al dolor.
C1 adjective /ɪnˈvɛntɪv/

inventive

inventivo
Meaning
Having the ability to create or design new things or to think originally.
Example
The inventor was known for his inventive solutions to everyday problems.
El inventor era conocido por sus soluciones inventivas para los problemas cotidianos.
C1 verb /ɪnˈvoʊk/

invoke

invocar
Meaning
to call upon a higher power, authority, or principle for help, support, or justification
Example
The lawyer invoked the constitution to defend his client.
El abogado invocó la constitución para defender a su cliente.
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.
B2 adverb /ɪmˈpɔːtəntli/

importantly

de manera importante
Meaning
in a way that is of great significance or value
Example
Importantly, the report highlights the need for immediate action.
De manera importante, el informe resalta la necesidad de acción inmediata.
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.
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.
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.
B2 noun /ˌɪmpərˈfɛkʃən/

imperfection

imperfección
Meaning
a flaw, defect, or weakness; the state of being imperfect
Example
She accepted her imperfection as part of being human.
Ella aceptó su imperfección como parte de ser humana.
B1 noun /ˈɪnsɪdənt/

incident

incidente
Meaning
an event or occurrence, often unpleasant or unusual
Example
The police quickly responded to the incident in the park.
La policía respondió rápidamente al incidente en el parque.
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 verb /ˈɪntɪɡreɪt/

integrate

integrar
Meaning
To combine or bring together into a unified whole.
Example
The new system integrates data from multiple sources.
El nuevo sistema integra datos de múltiples fuentes.
B2 noun ɪˈmjuː.nɪ.ti

immunity

inmunidad
Meaning
The ability of an organism to resist a particular infection or toxin by the action of specific antibodies.
Example
A strong immunity protects against infections.
Una fuerte inmunidad protege contra infecciones.
C2 noun /ɪnˈvɛstɪtʃər/

investiture

ceremonia de investidura
Meaning
the formal ceremony of conferring authority, rank, or office
Example
The king held an investiture ceremony for the new knight.
El rey celebró una ceremonia de investidura para el nuevo caballero.
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.
B2 adjective /ˌɪntərˈmiːdiət/

intermediate

intermedio
Meaning
Coming between two things in time, place, or order; in the middle level or stage.
Example
She is taking an intermediate-level French course.
Ella está tomando un curso de francés de nivel intermedio.
C2 adjective /ˌɪndɪˈsɒljʊbl/

indissoluble

Indisoluble
Meaning
Unable to be destroyed, broken, or dissolved.
Example
Marriage was once considered an indissoluble bond.
El matrimonio alguna vez fue considerado un vínculo indisoluble.
C1 adjective /ˌɪnsərˈmaʊntəbl/

insurmountable

insuperable
Meaning
Too great to be overcome.
Example
The explorers faced insurmountable odds in the desert.
Los exploradores enfrentaron obstáculos insuperables en el desierto.
B1 verb /ɪmˈpɔːrt/

import

importar
Meaning
to bring goods or services into a country from abroad; to transfer data
Example
The country imports oil from abroad.
El país importa petróleo del extranjero.
B1 adjective /ɪˈmiːdiət/

immediate

inmediato
Meaning
happening or done without delay
Example
The doctor gave her immediate attention.
El doctor le dio atención inmediata.
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 adjective /ˌɪnkəmˈprɛsəbl/

incompressible

incompresible
Meaning
Not able to be pressed or squeezed into a smaller space.
Example
Liquids are generally considered incompressible.
Los líquidos generalmente se consideran incomprensibles.
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.
B2 noun ɪnˈdʒʌstɪs

injustice

injusticia
Meaning
Lack of fairness or justice; the practice of being unjust or unfair.
Example
The story portrays the injustices faced by the common people.
La historia retrata las injusticias que enfrentan las personas comunes.
C1 adjective /ɪnˈstrʌktɪv/

instructive

instructivo
Meaning
useful and informative; providing knowledge or instruction
Example
The lecture was highly instructive and engaging.
La conferencia fue muy instructiva y atractiva.
C2 adjective /ɪnˈfɜːrnəl/

infernal

infernal
Meaning
relating to hell; extremely troublesome or annoying
Example
The workers complained about the infernal noise from the construction site.
Los trabajadores se quejaron del ruido infernal proveniente del sitio de construcción.
C1 adjective /ɪˈnɒkjuəs/

innocuous

inofensivo
Meaning
Not harmful or offensive.
Example
His remark was completely innocuous and not meant to offend anyone.
Su comentario fue completamente inofensivo y no tenía la intención de ofender a nadie.
C1 verb /ɪnˈskraɪb/

inscribe

grabar
Meaning
to write or carve words or symbols on a surface
Example
They inscribed her name on the trophy.
Ellos grabaron su nombre en el trofeo.
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.
C1 verb /ɪnˈdaɪt/

indict

acusar
Meaning
to formally accuse someone of committing a serious crime
Example
The grand jury decided to indict the politician for corruption.
El gran jurado decidió acusar al político por corrupción.
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 /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.
C1 noun /ˌɪməˈtjʊərəti/

immaturity

inmadurez
Meaning
the state of not being fully developed emotionally, mentally, or physically; lack of maturity
Example
His immaturity made it difficult for him to handle responsibility.
Su inmadurez le dificultó manejar la responsabilidad.
B1 noun ɪˈnɪʃətɪvz

initiatives

iniciativas
Meaning
Actions or strategies designed to resolve a difficulty or improve a situation; programs or projects.
Example
Community initiatives benefit underprivileged groups.
Las iniciativas comunitarias benefician a los grupos desfavorecidos.
B1 verb /ɪnˈtend/

intend

intentar
Meaning
to plan or have in mind as a purpose; to mean
Example
I intend to finish this project by tomorrow.
Tengo la intención de terminar este proyecto para mañana.
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 noun ˌɪn.fɪlˈtreɪ.ʃən

infiltration

infiltración, acceso secreto
Meaning
The process of entering or gaining access to an organization or place surreptitiously.
Example
Cybersecurity prevents infiltration into sensitive data.
La ciberseguridad previene la infiltración en datos sensibles.
B1 adjective /ˌɪnɪkˈspɛnsɪv/

Inexpensive

barato; accesible; económico
Meaning
not costing a lot of money; affordable; budget-friendly
Example
This restaurant offers delicious and inexpensive meals for students.
Este restaurante ofrece comidas deliciosas y baratas para estudiantes.
B2 adjective /ɪˈrɪˌspɑn.sə.bəl/

Irresponsible

irresponsable
Meaning
lacking a sense of responsibility; careless
Example
It was irresponsible of him to leave without telling anyone.
Fue irresponsable de su parte irse sin decirle a nadie.
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 ˌɪnstrəˈmɛntl

instrumental

instrumental
Meaning
Serving as a crucial means, agent, or tool; having a part in bringing about a result.
Example
Children can be instrumental in building a better society.
Los niños pueden ser instrumentales en la construcción de una sociedad mejor.
C1 noun /ˈaɪsətəʊp/

isotope

isótopo
Meaning
Atoms of the same element with equal number of protons but different numbers of neutrons.
Example
Carbon-14 is a radioactive isotope used in dating fossils.
El carbono-14 es un isótopo radiactivo utilizado en la datación de fósiles.
B2 noun /ˌɪmɪˈɡreɪʃən/

immigration

inmigración
Meaning
the action of coming to live permanently in a foreign country
Example
Immigration policies vary from country to country.
Las políticas de inmigración varían de un país a otro.
B2 adjective /ˌɪnstɪˈtjuːʃənl/

institutional

institucional
Meaning
Relating to an organization or established practice.
Example
The government made several institutional reforms in education.
El gobierno hizo varias reformas institucionales en la educación.
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.
B2 noun /ˈaɪrəni/

irony

ironía
Meaning
a situation that is strange or amusing because it is the opposite of what is expected; the use of words to convey the opposite meaning
Example
The irony of the situation was that the winner forgot his own prize.
La ironía de la situación fue que el ganador olvidó su propio premio.