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

In the city’s northern end, an outdoor neighborhood event is taking a different form in its second year. —Alicia Wallace, CNN Money, 24 Jan. 2026

Another of the Francesca’s locations is inside the Oak Park Mall, which is losing two other stores next week, outdoor clothing store Eddie Bauer and women’s clothing boutique Chico’s. —Noelle Alviz-Gransee, Kansas City Star, 23 Jan. 2026

Many homes also have private outdoor hot tubs, and every rental includes a complimentary Lexus SUV for effortless exploration of the ranch. —Condé Nast, Condé Nast Traveler, 23 Jan. 2026

The outdoor festival blends modern country acts with ’90s and early 2000s favorites. —Holly Alvarado, San Diego Union-Tribune, 23 Jan. 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