Words Starting with I

Explore the meanings and uses of words starting with the letter I.

Simple and easy to understand
…we’ve really made it so simple, just relax; and learn.

Word List

Illuminate: (verb) To light up; to make something clearer or easier to understand.
Example: The teacher used examples to illuminate the complex topic.

Immaculate: (adjective) Perfectly clean, neat, or tidy; free from flaws.
Example: Her house was always immaculate, with everything in its place.

Imminent: (adjective) About to happen; impending.
Example: The storm was imminent, and everyone was advised to take shelter.

Immune: (adjective) Protected or exempt from something, especially a disease.
Example: Vaccination can make you immune to certain illnesses.

Impact: (noun) The strong effect or influence that something has on a situation or person.
Example: The new policy had a significant impact on the community.

Imperative: (adjective) Of vital importance; crucial.
Example: It is imperative that we address climate change urgently.

Improvise: (verb) To create or perform spontaneously or without preparation.
Example: The musician had to improvise when his sheet music was lost.

Incessant: (adjective) Continuing without pause or interruption; unceasing.
Example: The incessant noise made it difficult to concentrate.

Indigenous: (adjective) Originating or occurring naturally in a particular place; native.
Example: The indigenous tribes have lived in harmony with nature for centuries.

Inevitable: (adjective) Certain to happen; unavoidable.
Example: Change is an inevitable part of life.

Inspire: (verb) To fill someone with the urge or ability to do or feel something.
Example: The speaker’s words inspired the audience to take action.

Intrepid: (adjective) Fearless; adventurous.
Example: The intrepid explorers ventured into the uncharted territory.

Intrigue: (verb) To arouse the curiosity or interest of; fascinate.
Example: The plot of the book intrigued many readers.

Irrational: (adjective) Not logical or reasonable.
Example: His irrational fears prevented him from enjoying life.

Isolate: (verb) To separate from others; to set apart.
Example: The patient was isolated to prevent the spread of infection.

Illustrious: (adjective) Well-known, respected, and admired for past achievements.
Example: She had an illustrious career as a scientist.

Impose: (verb) To force something to be accepted or put in place.
Example: The government may impose new regulations to protect the environment.

Inundate: (verb) To overwhelm someone with things or people to be dealt with; to flood.
Example: The office was inundated with calls after the announcement.

Integrity: (noun) The quality of being honest and having strong moral principles.
Example: His integrity earned him the respect of his colleagues.

Ignite: (verb) To set something on fire or cause it to burn.
Example: The spark ignited the dry leaves and started a fire.

Indispensable: (adjective) Absolutely necessary; essential.
Example: Water is indispensable for all forms of life.

Infamous: (adjective) Well-known for some bad quality or deed.
Example: The infamous criminal was captured after years on the run.