insolent
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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.
B2 adjective /ˌɪrɪˈzɪstəbəl/

Irresistible

irresistible
Meaning
too attractive and tempting to be resisted; impossible to resist
Example
The chocolate cake was absolutely irresistible.
El pastel de chocolate era absolutamente irresistible.
C1 verb /ɪnˈkɜːr/

incur

incurrir
Meaning
To bring upon oneself something undesirable, usually as a result of actions.
Example
He incurred a fine for parking in the wrong place.
Él incurrió en una multa por aparcar en el lugar equivocado.
B2 noun /ɪmˈpeɪʃəns/

impatience

impaciencia
Meaning
The state of being quickly irritated or unable to wait calmly.
Example
His impatience grew as the meeting dragged on.
Su impaciencia creció a medida que la reunión se alargaba.
B1 adverb /ɪnˈkriːsɪŋli/

increasingly

cada vez más
Meaning
more and more over time
Example
People are increasingly concerned about climate change.
Las personas están cada vez más preocupadas por el cambio climático.
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.
B2 verb /ɪnˈherɪt/

inherit

heredar
Meaning
to receive money, property, or characteristics from someone when they die; to acquire from predecessors
Example
She inherited her grandmother's house.
Ella heredó la casa de su abuela.
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.
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.
C2 adjective /ɪmˈplaɪəbl/

impliable

implícito
Meaning
Capable of being implied or suggested.
Example
The meaning of the statement is not directly clear but is impliable from the context.
El significado de la declaración no es directamente claro, pero es implicable por el contexto.
C2 adjective /ɪnˈsuːsiənt/

insouciant

despreocupado
Meaning
Showing a casual lack of concern; carefree.
Example
He gave an insouciant shrug and walked away.
Hizo un encogimiento de hombros despreocupado y se alejó.
C1 adjective /ˈɪmpjəd(ə)nt/

impudent

descarado, insolente
Meaning
not showing due respect for another person; rude
Example
The impudent child talked back to the teacher.
El niño descarado le contestó al maestro.
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.
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.
B2 noun ɪnˈtɛɡrɪti

integrity

integridad
Meaning
The quality of being honest and having strong moral principles; moral uprightness.
Example
Teachers' integrity fosters a positive learning environment.
La integridad de los maestros fomenta un ambiente de aprendizaje positivo.
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 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.
B2 noun ˌɪn.tɪˈɡreɪ.ʃən

integration

Integración. Unificación.
Meaning
The action or process of integrating; the process of combining or adding parts to make a unified whole.
Example
Integration of networks will improve global communication.
La integración de redes mejorará la comunicación global.
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.
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.
C1 adjective /ɪnˈflæməbəl/

Inflammable

inflamable; combustible
Meaning
easily set on fire; flammable; combustible
Example
The inflammable material caught fire quickly.
El material inflamable se prendió rápidamente.
B2 noun /ˈɪdɪət/

idiot

idiota
Meaning
a person who acts in a way that is considered very stupid or foolish
Example
He acted like an idiot at the party last night.
Él actuó como un idiota en la fiesta anoche.
B2 adjective /ɪnˈækjərət/

Inaccurate

incorrecto; erróneo; equivocado
Meaning
not correct; containing errors; wrong
Example
The weather forecast was inaccurate yesterday.
El pronóstico del tiempo estuvo incorrecto ayer.
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.
C1 verb ɪˈmɜːrs

immerse

sumergir
Meaning
To involve oneself deeply in a particular activity or interest; to surround completely.
Example
Immerse yourself in the new language.
Sumérgete en el nuevo idioma.
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 verb /ˈɪndjʊˌreɪt/

indurate

endurecer
Meaning
To harden or make something physically or emotionally tough.
Example
Years of hardship indurated his spirit.
Años de dificultades induraron su espíritu.
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.
C2 adjective /ɪnˈkɒrɪdʒəbəl/

incorrigible

incorregible
Meaning
incapable of being corrected, improved, or reformed
Example
He is an incorrigible optimist who never loses hope.
Él es un optimista incorregible que nunca pierde la esperanza.
B2 adjective aɪˈkɒnɪk

iconic

icónico
Meaning
Very famous or popular, especially being considered to represent particular opinions or a particular time.
Example
The line "It was the best of times..." is iconic.
La línea "Fue el mejor de los tiempos..." es icónica.
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 adjective /ˌɪnəˈtɛntɪv/

inattentive

inattento
Meaning
not paying attention; lacking focus or concentration
Example
The inattentive student missed several important instructions.
El estudiante inattento perdió varias instrucciones importantes.
C1 noun /ɪnˈdʒʌŋkʃən/

injunction

orden judicial
Meaning
A judicial order restraining a person from an action or compelling a certain act.
Example
The court issued an injunction to stop the company from polluting the river.
El tribunal emitió una orden judicial para evitar que la empresa contaminara el río.
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 /ˈɪn.trə.vɜːrt/

introvert

introvertido
Meaning
A person who tends to be shy and prefers spending time alone rather than in groups.
Example
As an introvert, he preferred reading over attending parties.
Como introvertido, prefería leer en lugar de asistir a fiestas.
B2 adjective /ɪˈreɡjələr/

irregular

irregular
Meaning
not even or consistent in shape, pattern, time, or behavior; not following normal rules
Example
His attendance at work has been irregular this month.
Su asistencia al trabajo ha sido irregular este mes.
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.
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.
C1 verb /ˈɪnfɪltreɪt/

infiltrate

infiltrarse
Meaning
to secretly enter or gain access to a place or group
Example
The spies managed to infiltrate the enemy base.
Los espías lograron infiltrarse en la base enemiga.
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 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 /ɪnˈveɪsɪv/

invasive

invasivo
Meaning
Tending to spread harmfully, intruding aggressively, or encroaching beyond proper boundaries.
Example
The doctor explained that the procedure was minimally invasive.
El doctor explicó que el procedimiento era mínimamente invasivo.
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 adjective /aɪˈdɪlɪk/

idyllic

idílico y hermoso
Meaning
Like an idyll; extremely happy, peaceful, or picturesque.
Example
They enjoyed an idyllic vacation by the sea.
Disfrutaron de unas vacaciones idílicas junto al mar.
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 /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.
B2 adjective ɪnˈev.ɪ.tə.bəl

inevitable

inevitable
Meaning
Certain to happen; unavoidable.
Example
Death is an inevitable part of life.
La muerte es una parte inevitable de la vida.
B2 verb /ɪmˈprɪzən/

imprison

encarcelar
Meaning
to put someone in prison; to confine or restrict someone's freedom
Example
The judge imprisoned the criminal for five years.
El juez encarceló al criminal por cinco años.
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 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.
C1 adjective /ɪnˈsɪstənt/

insistent

insistente
Meaning
demanding something firmly and refusing to accept no
Example
The child was insistent on getting a new toy.
El niño era insistente en conseguir un nuevo juguete.
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 /ɪnˈædɪkwəsi/

inadequacy

insuficiencia
Meaning
lack of sufficient ability, quality, or strength; a feeling of not being good enough
Example
She struggled with feelings of inadequacy at work despite her strong qualifications.
Luchaba con sentimientos de insuficiencia en el trabajo a pesar de sus sólidas calificaciones.
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.
B2 adjective /ˈɪmpæktfʊl/

impactful

impactante
Meaning
Having a major impact or effect; powerful and forceful.
Example
Her impactful speech moved the audience to take action.
Su discurso impactante movió al público a tomar acción.
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 adjective /ˌɪndɪˈstɪŋkt/

indistinct

indistinto
Meaning
Not clear or sharply defined; vague or blurred.
Example
The sound of voices was indistinct in the distance.
El sonido de las voces era indistinto a lo lejos.
B2 adjective /ɪmˈpɪəriəl/

imperial

imperial
Meaning
Relating to an empire or emperor; having supreme authority.
Example
The imperial palace was a symbol of the emperor's power.
El palacio imperial era un símbolo del poder del emperador.
C1 noun /ɪnˈsek.tɪ.saɪd/

Insecticide

insecticida
Meaning
a substance used for killing insects; a chemical pesticide that targets insects
Example
The farmer sprayed insecticide on his crops to protect them from harmful bugs.
El agricultor roció insecticida en sus cultivos para protegerlos de los insectos dañinos.
B2 noun /ˌɪntəˈrʌpʃən/

interruption

interrupción
Meaning
the act of stopping or breaking the continuity of something; a pause caused by an external action
Example
The meeting was delayed due to an unexpected interruption.
La reunión se retrasó por una interrupción inesperada.
C1 verb /ˌɪn.tɚˈtwaɪn/

intertwine

conectar o vincular de cerca; torcer o combinar estrechamente
Meaning
To connect or link closely; to twist together or combine closely.
Example
Their lives became intertwined through years of friendship.
Sus vidas se entrelazaron a lo largo de años de amistad.
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 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 /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.
C1 adjective /ɪnˈæk.tɪv/

Inactive

inactivo
Meaning
not active; not working; dormant; idle
Example
The volcano has been inactive for over a century.
El volcán ha estado inactivo durante más de un siglo.
C2 noun /ˈaɪ.ərn.wʊd/

Ironwood

madera de hierro
Meaning
a hard, dense wood from various trees; also the tree itself that produces small flowers
Example
The ironwood tree blooms with tiny white flowers.
El árbol de madera de hierro florece con pequeñas flores blancas.
C2 adjective /ˌɪrɪˈkɒnsɪləbl/

irreconcilable

irreconciliable
Meaning
impossible to make compatible or bring into harmony; unable to resolve differences
Example
The couple separated due to irreconcilable differences.
La pareja se separó debido a diferencias irreconciliables.
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.
A2 verb /ɪnˈvaɪtɪd/

invited

invitado
Meaning
asked someone formally or politely to go somewhere or do something
Example
She was invited to the party.
Ella fue invitada a la fiesta.
C1 adjective /ˌɪndɪˈskriːt/

indiscreet

imprudente
Meaning
Not careful in what one says or does, likely to reveal secrets or offend.
Example
It was indiscreet of him to mention the plan in public.
Fue imprudente de su parte mencionar el plan en público.
C1 adjective /ɪˈrɛvərənt/

irreverent

irreverente
Meaning
showing a lack of respect for people or things that are usually respected
Example
The comedian’s irreverent jokes offended some of the audience.
Los chistes irreverentes del comediante ofendieron a algunos de la audiencia.
B2 noun /ɪnˈvɒlvmənt/

involvement

participación
Meaning
the act of taking part in something
Example
His involvement in the project was crucial.
Su participación en el proyecto fue crucial.
C2 adjective /ˌɪrɪˈdɛsənt/

iridescent

iridiscente
Meaning
showing luminous colors that seem to change when seen from different angles
Example
She wore an iridescent dress that sparkled in the light.
Ella llevaba un vestido iridiscente que brillaba a la luz.
B2 adjective /ɪnˈtɛns/

intense

intenso
Meaning
Of extreme force, degree, or strength.
Example
She felt intense pain after the accident.
Ella sintió un dolor intenso después del accidente.
C1 noun /ˌɪntərˈmiːdiˌɛri/

intermediary

intermediario
Meaning
A person who acts as a link between people in order to try to bring about an agreement; a mediator.
Example
The diplomat served as an intermediary between the two conflicting nations.
El diplomático actuó como intermediario entre las dos naciones en conflicto.
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.
C2 adjective /ɪnˈsuːpərəbl/

insuperable

insuperable
Meaning
Impossible to overcome or surpass.
Example
The team faced insuperable challenges during the expedition.
El equipo enfrentó desafíos insuperables durante la expedición.
C1 adjective /ɪˈnuːmərəbəl/

Innumerable

innumerable; incontable; infinito
Meaning
too many to be counted; countless; infinite in number
Example
There are innumerable stars in the night sky that we cannot see with our naked eyes.
Hay innumerables estrellas en el cielo nocturno que no podemos ver con nuestros ojos desnudos.
C1 adjective /ˌɪnəˈfɛnsɪv/

inoffensive

inoffensivo
Meaning
Not likely to offend or provoke; harmless.
Example
His inoffensive remarks kept the conversation friendly.
Sus comentarios inofensivos mantuvieron la conversación amigable.
B2 adverb /ˌɪndəˈrɛktli/

indirectly

indirectamente
Meaning
in a way that is not direct; through an intermediate means or influence
Example
The policy affected small businesses indirectly.
La política afectó indirectamente a las pequeñas empresas.
C1 noun /ɪmˈpjʊərəti/

impurity

impureza
Meaning
the state of being unclean or contaminated; a substance that makes something impure
Example
The scientist removed every impurity from the water sample.
El científico eliminó toda impureza de la muestra de agua.
C2 noun /ɪmˈpʌlʃən/

impulsion

impulso
Meaning
a strong urge or drive to act; the act of impelling
Example
His impulsion to travel made him leave his job suddenly.
Su impulso de viajar lo llevó a dejar su trabajo de repente.
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.
C1 noun ˌɪnfɛsˈteɪʃən

infestation

infestación, gran número de insectos o animales en un lugar
Meaning
The presence of an unusually large number of insects or animals in a place, causing damage or disease.
Example
The infestation of ants in the kitchen led to immediate pest control measures.
La infestación de hormigas en la cocina llevó a medidas inmediatas de control de plagas.
A2 noun /ˌɪn.trəˈdʌk.ʃən/

introduction

introducción
Meaning
the action of introducing something or someone; an opening or beginning part
Example
The professor gave a brief introduction before starting the lecture.
El profesor dio una breve introducción antes de comenzar la conferencia.
C1 noun /ɪnˈdaɪtmənt/

indictment

acusación formal
Meaning
a formal charge or accusation of a serious crime
Example
The indictment accused the company of multiple violations.
La acusación formal acusó a la empresa de múltiples violaciones.
B2 noun /ɪnˈkluːʒən/

inclusion

inclusión
Meaning
the action or state of including or being included within a group or structure
Example
Diversity and inclusion are key values in modern workplaces.
La diversidad y la inclusión son valores clave en los lugares de trabajo modernos.
B1 verb /ɪnˈsɪst/

insist

insistir
Meaning
to demand firmly; to state persistently
Example
He insisted on paying the bill.
Él insistió en pagar la cuenta.
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 /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.
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 /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 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.
C2 verb ˈɪn.kʌl.keɪt

inculcate

inculcar
Meaning
Instill an attitude, idea, or habit by persistent instruction; to teach and impress by frequent repetitions.
Example
Parents should inculcate good values in their children.
Los padres deberían inculcar buenos valores en sus hijos.
C1 verb ɪˈnɪʃɪeɪtɪd

initiated

iniciado
Meaning
Caused a process or action to begin; started something.
Example
The project was initiated to enhance marine biodiversity.
El proyecto fue iniciado para mejorar la biodiversidad marina.
C1 adjective /ɪnˈfleɪtɪd/

inflated

inflado
Meaning
excessively increased in size, value, or importance; filled with air or gas
Example
The company faced criticism for its inflated prices.
La empresa enfrentó críticas por sus precios inflados.
C1 adverb /ɪnˈdɛfɪnətli/

indefinitely

indefinidamente
Meaning
for an unlimited or unspecified period of time
Example
The project has been postponed indefinitely.
El proyecto ha sido pospuesto indefinidamente.
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.
A1 preposition /ɪn/

in

en
Meaning
expressing the situation of being enclosed or surrounded by something
Example
She is in the kitchen preparing dinner.
Ella está en la cocina preparando la cena.
C1 noun /ˌɪnˈdɪsəplɪn/

indiscipline

indisciplina
Meaning
lack of discipline or self-control; failure to obey rules or maintain order
Example
Indiscipline among the students disrupted the learning environment.
La indisciplina entre los estudiantes interrumpió el ambiente de aprendizaje.
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.
C1 verb /ɪɡˈnaɪt/

ignite

encender
Meaning
To catch fire or cause to catch fire; to start or arouse.
Example
The sparks ignited the dry leaves in seconds.
Las chispas encendieron las hojas secas en segundos.
C1 noun /ˌɪntərˈdʒɛkʃən/

interjection

interjección
Meaning
a word or phrase used to express sudden emotion or reaction, often standing alone
Example
Words like 'wow' and 'ouch' are common interjections in English.
Palabras como 'wow' y 'ouch' son interjecciones comunes en inglés.
C2 adjective /ˌɪn.trəˈmjʊə.rəl/

intramural

dentro de la institución
Meaning
Occurring within the walls of a single institution, especially a school or college.
Example
The college organizes intramural sports competitions every semester.
La universidad organiza competencias deportivas intramuros cada semestre.
B1 noun /ɪnˈstrʌkʃənz/

instructions

instrucciones
Meaning
Detailed information on how something should be done or operated.
Example
Please follow the instructions on the box.
Por favor, siga las instrucciones en la caja.
C2 adjective /ˌɪnɪˈsɛnʃəl/

inessential

inesencial
Meaning
not necessary or important; not essential
Example
The report removes all inessential details to stay focused.
El informe elimina los detalles inesenciales para mantenerse enfocado.
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.
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 /ɪnˈvɪdiəs/

invidious

envidioso
Meaning
likely to arouse resentment, envy, or anger in others
Example
The manager's invidious remarks created tension among the employees.
Los comentarios envidiosos del gerente crearon tensión entre los empleados.
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 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 /ɪnˈɛksərəbl/

inexorable

inexorable
Meaning
Impossible to stop or prevent; relentless.
Example
The inexorable rise of technology is changing every aspect of life.
El inexorable aumento de la tecnología está cambiando cada aspecto de la vida.
C1 adjective /ɪmˈpæsəbəl/

impassable

intransitable
Meaning
Impossible to travel along or over.
Example
The road became impassable after the heavy snowfall.
La carretera se volvió intransitable después de la fuerte nevada.
C1 noun /ˌɪnklɪˈneɪʃən/

inclination

inclinación
Meaning
A natural tendency or urge to act or feel in a particular way.
Example
She has an inclination towards helping others.
Ella tiene una inclinación hacia ayudar a los demás.
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.
C2 adjective /ˌɪntərˈniːsaɪn/

internecine

conflicto interno
Meaning
Relating to conflict within a group, often causing mutual destruction.
Example
The internecine conflict weakened the organization from within.
El conflicto interno debilitó la organización desde dentro
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 /ɪnˈtræn.sɪ.dʒəns/

intransigence

intransigencia
Meaning
Refusal to change one's views or to agree about something.
Example
The negotiations failed due to the intransigence of both parties.
Las negociaciones fracasaron debido a la intransigencia de ambas partes.
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.
B2 verb /ɪtʃ/

itch

picazón
Meaning
to feel an urge to scratch; to have a restless desire
Example
My skin itches from the mosquito bites.
Mi piel pica debido a las picaduras de mosquito.
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.