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 of outdoor

• open-air
• outside
• outer
• exterior
• out-of-door
• external
• 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

Private cottages provide extra space and solitude, plus special amenities like outdoor soaking tubs, dining areas, and kitchens. —Condé Nast, Condé Nast Traveler, 21 Feb. 2026

About half of the large panels at the outdoor exhibit have been restored this week at the site of the former President's House on Independence Mall. —Tassanee Vejpongsa, Arkansas Online, 21 Feb. 2026

Additionally, residents are warned of the possible damage that could be done on unprotected outdoor plumbing. —Veronica Fernandez-Alvarado updated February 20, Sacbee.com, 21 Feb. 2026

Over the years, the Hoffs have hosted family reunions, team banquets, chili cookouts and dozens of other outdoor gatherings. —Kansas City Star, 20 Feb. 2026

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