CEFR Level
Impossible to explain or understand.
"The sudden disappearance of the file was inexplicable."
incapable of making mistakes or being wrong
"Her judgment seemed infallible in matters of finance."
well known for some bad quality or deed
"The dictator was infamous for his cruelty."
soldiers marching or fighting on foot; foot soldiers collectively
"The infantry advanced across the battlefield on foot."
a conclusion reached on the basis of evidence and reasoning
"The detective made an inference based on the evidence he collected."
a large, intense fire that is dangerously out of control
"The building turned into an inferno within minutes."
to overrun in large numbers, especially so as to cause damage or discomfort
"The old house was infested with rats."
The presence of an unusually large number of insects or animals in a place, causing damage or disease.
"The infestation of ants in the kitchen led to immediate pest control measures."
the act of being unfaithful to a spouse or partner
"Their marriage ended due to his infidelity."
to secretly enter or gain access to a place or group
"The spies managed to infiltrate the enemy base."
The process by which water on the ground surface enters the soil.
"Good soil structure promotes infiltration of rainwater."
Weak, especially due to old age or illness.
"The infirm old man needed assistance to walk."
A hospital or place where the sick or injured are cared for.
"The school had an infirmary for minor injuries."
Physical or mental weakness, especially from old age.
"Despite his infirmity, he remained cheerful."
to arouse strong feelings or provoke anger; to cause inflammation in the body
"The politician's remarks served to inflame public opinion."
easily set on fire; easily excited or angered
"This material is highly inflammable and should be kept away from heat."
causing inflammation in the body; arousing anger, hostility, or strong emotion
"His inflammatory speech triggered protests across the city."
to fill with air or gas so it expands; to increase excessively or artificially
"The mechanic inflated the tire to the correct pressure."
excessively increased in size, value, or importance; filled with air or gas
"The company faced criticism for its inflated prices."
Causing or characterized by inflation of prices.
"Excessive money supply can lead to an inflationary economy."
A change in the tone or pitch of the voice when speaking, which helps convey meaning and emotion.
"Her voice inflection conveyed deep emotion in the speech."
the quality of being rigid or unwilling to change; lack of adaptability
"The inflexibility of the rules caused unnecessary delays."
Not able to bend or change; unwilling to change ideas or behavior.
"His inflexible attitude made negotiations difficult."
The movement of things such as money, people, or water into a place.
"The inflow of tourists boosted the local economy."
A large arrival or flow of people or things.
"The city experienced an influx of tourists during the festival."
The process of building and improving the basic physical and organizational structures and facilities needed for the operation of a society or enterprise.
"Infrastructural development is necessary for efficient recycling."
Happening rarely or not often.
"He made infrequent visits to his hometown after moving abroad."
To actively break the terms of a law, agreement, or right.
"Copying this software without permission will infringe copyright laws."
To make someone extremely angry.
"His careless remarks infuriated the entire team."
to fill or spread through something; to instill a quality, idea, or feeling
"The teacher tried to infuse her students with a love for reading."
the act of introducing something into another; a drink made by steeping leaves or herbs in liquid
"She prepared a calming infusion of chamomile tea."
very clever and inventive; showing creativity in problem-solving
"The engineer came up with an ingenious solution to the problem."
the quality of being clever, original, and inventive
"The project was completed on time thanks to the ingenuity of the team."
Firmly fixed or established; deeply rooted and difficult to change.
"His ingrained habits were hard to break."
Existing in something as a natural, permanent, or essential quality.
"There are inherent risks in extreme sports."
a person who receives money, property, or a title when someone dies
"She became the inheritor of her family's estate."
To hinder, restrain, or prevent an action or process.
"Fear can inhibit creativity."
Unable to act in a relaxed and natural way, especially due to self-consciousness or restraint.
"He was too inhibited to express his true feelings."
Harsh and difficult to live in; unfriendly or unwelcoming to guests.
"The desert is an inhospitable environment for most plants."
lacking human qualities of compassion and mercy; cruel or barbaric
"The prisoners were kept in inhuman conditions."
Caused a process or action to begin; started something.
"The project was initiated to enhance marine biodiversity."
A judicial order restraining a person from an action or compelling a certain act.
"The court issued an injunction to stop the company from polluting the river."
Causing or likely to cause harm or damage.
"Smoking is injurious to health."
A slight idea, hint, or suspicion about something.
"She had an inkling that he was planning a surprise."
Situated away from the coast; towards the interior of a country.
"They decided to travel further inland to explore the countryside."
A small arm of the sea, a lake, or a river; an opening or passage for entry.
"The boat entered a narrow inlet along the coast."
a person confined to an institution such as a prison or hospital
"The prison has over a thousand inmates."
Existing naturally in a person or thing from birth; inherent.
"She has an innate ability to understand people's feelings."
most private and secret; deepest; most personal
"She shared her innermost feelings with her closest friend."
Not harmful or offensive.
"His remark was completely innocuous and not meant to offend anyone."
