Adjectives that start with I

Describing words, to help you tell someone else what something is like.

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I is for Identical

Two or more things are identical if they look exactly the same. The two men in the photo are identical twins.

I is for Idle

You are idle if you are not doing anything productive with your time.
Another word for idle is lazy.

I is for Ignorant

Someone is ignorant if they don't know very much about something, or are untrained in something.

For example, "Robert was ignorant about clothing fashions."

I is for Immature

Immature means not fully developed or not ready yet. It can describe a person, an animal, or a plant that is still growing.

The word is often used for babies and young animals, and for plants that have not reached full size. Sometimes it also describes behavior that is not thoughtful or responsible yet.

The photo is of an immature owl.

I is for Imperfect

Something that is noticeably not perfect is described as imperfect.

I is for In

Something is in something else if it is contained in it somehow. The person in the picture is in a bath.
The opposite of in is out.

I is for Incomplete

Something is incomplete if it hasn't been finished yet.

A similar word to incomplete is unfinished. The opposite of incomplete is complete or finished.

I is for Indoor

You are indoors if you are inside a house or other building. An indoor version of something is one that is meant to be kept or used indoors, for example an indoor plant.

I is for Industrial

Something is industrial if they are used for or by industry. This usually means heavy manufacturing or large scale production, like ore refining. Industrial objects are usually very big, heavy and dirty.
The opposite of industrial is domestic.

I is for Injured

Someone or something is injured if they are hurt or damaged. The dog in the picture has an injured leg.

I is for Inquisitive

Inquisitive is another word for curious. It means you are wanting to investigate and learn new things.

I is for Intricate

Something is intricate if it has many small parts, connected in a complicated way.
The carving in the picture is intricately done.

I is for Invisible

Invisible means you cannot see something with your eyes.

People most often use it to describe something that is very well hidden, or for effort that people don't notice. For example, "she was invisible around the office".

The person in the middle of the picture is invisible.

I is for Iranian

Iranian means anything to do with Iran, or a person from Iran.

I is for Irish

Something is Irish if it relates to Ireland.