11 Plus Vocabulary Words Starting With I

A distinctive or peculiar habit, behavior, or characteristic unique to an individual

“Her idiosyncrasy of humming while working amused her colleagues.”

Not active or in use; avoiding work; lazy or without purpose

“The machines sat idle during the factory's summer shutdown.”

A person or thing that is greatly admired and loved; an image used as an object of worship

“The pop star was an idol to millions of teenagers worldwide.”

Lacking knowledge, information, or awareness about something

“She was ignorant of the company's financial troubles until the announcement.”

To copy or reproduce the actions, appearance, or sounds of someone or something

“Children often imitate the behavior of their parents.”

Occurring or done without delay; nearest in time, relationship, or space

“The patient requires immediate medical attention.”

Without any delay; at once; instantly

“Please report any suspicious activity immediately.”

To dip or submerge completely in liquid; to involve oneself deeply in an activity or interest

“She decided to immerse herself in Japanese culture by moving to Tokyo.”

Showing a lack of respect; rudely bold or disrespectful

“The impudent student interrupted the teacher mid-sentence.”

Unable to be heard; too quiet or unclear to be perceived by the ear

“Her whisper was almost inaudible in the noisy restaurant.”

Marking the beginning of a new venture or the start of someone's time in office

“The president gave a moving inaugural address.”

To formally begin or introduce a new system, policy, or period; to admit someone to office with a ceremony

“The mayor will inaugurate the new community center next week.”

A surgical cut made in skin or flesh; a clean, precise cut

“The surgeon made a small incision to begin the procedure.”

Not clearly visible or attracting attention; not easily noticed

“The security cameras were placed in inconspicuous locations.”

A single person distinct from a group or class; a unique entity

“Each individual has the right to express their opinion.”

Not suitable or safe for eating; unfit for consumption

“Some wild mushrooms are inedible and can be poisonous.”

Lower in rank, quality, or importance compared to something else

“The counterfeit product was of inferior quality.”

The capacity to have an effect on someone's character, development, or behavior; power to shape outcomes

“Parents have a significant influence on their children's values.”

To live in or occupy a place; to be present in a particular area

“Many rare species inhabit the depths of the ocean.”

People or animals that live in a particular place

“The island's inhabitants depend on fishing for their livelihood.”

Not harmful or offensive; unlikely to cause any damage or controversy

“What seemed like an innocuous remark actually hurt her feelings.”

In a state of mental illness; extremely foolish or irrational

“The prices at that restaurant are absolutely insane.”

To place or put something into something else; to add something in between

“Please insert your card into the machine.”

Showing a rude and arrogant lack of respect

“The insolent teenager rolled his eyes at his parents.”

To fill someone with the urge or ability to do or feel something creative or positive

“Her courage inspired others to stand up for their beliefs.”

Unable to be touched or grasped; not having a physical presence but still perceptible

“Trust and loyalty are intangible but invaluable assets.”

Of extreme force, degree, or strength; deeply felt or highly concentrated

“The intense heat of the desert was almost unbearable.”

A thing intended; a plan or aim that guides action

“Her intention was to finish the project before the deadline.”

Showing curiosity or concern about something; wanting to learn more or be involved

“She was deeply interested in ancient history.”

To get involved in a situation where one's involvement is not wanted; to obstruct a process

“Please don't interfere with our plans.”

The inner part or inside of something; the internal affairs of a country

“The interior of the house was beautifully decorated.”

To explain or understand the meaning of something; to translate spoken words from one language to another

“Different readers may interpret the poem in various ways.”

To ask questions of someone closely and aggressively, especially in an official context

“The police interrogated the suspect for several hours.”

To stop something from continuing by breaking in; to cut into someone's speech

“Please don't interrupt me while I'm speaking.”

Not legally or officially acceptable; having no force or foundation

“The contract was declared invalid due to missing signatures.”

The state of being separated from others; the condition of being alone or apart

“The patient was kept in isolation to prevent the spread of infection.”