outdoor

adjective

out·​door ˈau̇t-ˌdȯr 

ˈau̇t-ˈdȯr

variants or less commonly outdoors

ˈau̇t-ˌdȯrz,

ˈau̇t-ˈdȯrz 

1

: of or relating to the outdoors

2

a

: performed outdoors

outdoor sports

b

: outdoorsy

an outdoor couple

3

: not enclosed : having no roof

an outdoor restaurant

Synonyms

• alfresco
• open-air
• out-of-door
• out-of-doors
• outdoorsy

Examples of outdoor in a Sentence

an outdoor picnic is always at the mercy of the weather, of course

Recent Examples on the Web

The materials are selected to meet the demands of alpine environments, ensuring that wearers are protected and comfortable during their outdoor pursuits. —Emma Kershaw, Forbes.com, 20 June 2025

In southwest Elko County in Nevada and areas downstream of the Trout Fire in Grant County, New Mexico, the general public was advised to limit outdoor activity, and vulnerable groups were advised to remain indoors to avoid potential health impacts. —Joe Edwards, MSNBC Newsweek, 20 June 2025

The season’s heat instantly invokes daydreams of strolls through quaint neighborhoods, outdoor dining, and sunset sails on crystal clear waters. —Essence, 20 June 2025

He’s turned the historic district into an outdoor classroom, pushing for the installation of a historical marker and 5,000-square-foot mural that illustrate the Juneteenth story in the place where the holiday was born. —Phillip M. Bailey, USA Today, 20 June 2025

Word History

Etymology

out (of) door, out (of) doors

First Known Use

1748, in the meaning defined at sense 1

Rhymes for outdoor

• abhor
• abor
• adore
• afore
• ardour
• ashore
• backdoor
• before
• bookstore
• candour
• centaur
• claymore

Kids Definition

outdoor

adjective

out·​door ˌau̇t-ˌdō(ə)r 

-ˌdȯ(ə)r

variants also outdoors

-ˌdō(ə)rz 

-ˌdȯ(ə)rz

1

: of or relating to the outdoors

an outdoor setting

2

: done outdoors

outdoor games

3

: having no roof and walls

an outdoor theater