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 Waldorf approach—rooted in experiential learning, artistic expression, and outdoor exploration—is seamlessly woven into the CLAP method. —Hilary Tetenbaum, USA TODAY, 21 Feb. 2025

Guests can indulge in a variety of on-property entertainment options including a bowling alley, private cinema, outdoor tennis court and a dedicated suite of Mandarin Oriental staff. —Roger Sands, Forbes, 20 Feb. 2025

The Whyte Museum of the Canadian Rockies provides an excellent overview of the Banff region’s mountain ethos through exhibits that explore art, history, nature, outdoor recreation and more. —Cindy Hirschfeld, New York Times, 20 Feb. 2025

With spring—and its new fashion arrivals—on the horizon, now is the opportune time to transition the contents of your wardrobe into one that aligns with the bright sunshine, warmer temperatures, and all the outdoor activities that come with a season in bloom. —Laura Jackson, Vogue, 20 Feb. 2025

Word History

Etymology

out (of) door, out (of) doors

First Known Use

1748, in the meaning defined at sense 1

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