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."
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."
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."
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 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."
Harsh and difficult to live in; unfriendly or unwelcoming to guests.
"The desert is an inhospitable environment for most plants."
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."