interior

1 of 2

adjective

in·​te·​ri·​or in-ˈtir-ē-ər 

1

: lying, occurring, or functioning within the limiting boundaries : inner

an interior point of a triangle

2

: belonging to mental or spiritual life

a simple interior piety

3

: belonging to the inner constitution or concealed nature of something

interior meaning of a poem

4

: lying away or remote from the border or shore

interiorly

in-ˈtir-ē-ər-lē 

adverb

interior

2 of 2

noun

1

: the inner or spiritual nature : character

2

: the interior part (as of a country or island)

3

: the internal or inner part of a thing : inside

4

: the internal affairs of a state or nation

5

: a representation (as in a play or movie) of the interior of a building

Synonyms of interior

Adjective

• internal
• inner
• mental

Noun

• inside
• within

Examples of interior in a Sentence

Adjective

a large car with lots of interior room

the novel's characters have plenty of adventures, but their interior lives are never explored

Noun

a black car with gray leather interior

the interior of the house

They traveled deep into the interior of Australia.

Recent Examples on the Web

Adjective

If no shelter is available, crawl to an interior wall away from windows. —Ca Earthquake Bot, Sacbee.com, 28 Feb. 2026

Scrub And Clean Now take your brush and scrub off all the gunk, making sure to hit both top and bottom and every interior corner of the grid. —Brandee Gruener, Southern Living, 28 Feb. 2026

Noun

The second best-selling style from the online outlet, the Michael Kors Jet Set Crossbody Bag is beloved by shoppers for its versatility, classic style, simple silhouette, and spacious interior. —Stephanie Osmanski, Better Homes & Gardens, 6 Mar. 2026

Tools like ambient lighting, coupled with current design trends, allow car buyers to personalize their interiors for comfort and style, making the most of time spent in the car. —Beth Livesay, AJC.com, 6 Mar. 2026

Word History

Etymology

Adjective

Middle French & Latin; Middle French interiore, from Latin, comparative of Old Latin *interus inward, on the inside; akin to Latin inter

First Known Use

Adjective

15th century, in the meaning defined at sense 1

Noun

1600, in the meaning defined at sense 1

Phrases Containing interior

• interior angle
• interior decoration
• interior decorator
• interior design
• interior designer
• interior door
• interior monologue

Rhymes for interior

• anterior
• exterior
• inferior
• ulterior

Kids Definition

interior

1 of 2 adjective

in·​te·​ri·​or in-ˈtir-ē-ər 

1

: existing or occurring within the limits : inner

2

: remote from the border or shore

interiorly adverb

interior

2 of 2 noun

1

: the internal or inner part of something : inside

the interior of a house

2

: the inland part (as of a country or island)

traveled to the interior of Australia

3

: the internal affairs of a state or nation

department of the Interior

Medical Definition

interior

1 of 2 adjective

in·​te·​ri·​or in-ˈtir-ē-ər 

: lying, occurring, or functioning within limiting boundaries

interior

2 of 2 noun

: the internal or inner part or cavity of a thing