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

All public reception areas, dining and meeting rooms within the Manor House are accessible by a standard dimension wheelchair, as is the outdoor pool. — Condé Nast, Condé Nast Traveler, 17 Sep. 2026

The contemporary abode includes five bedrooms, six bathrooms, a private pool, and outdoor space. — Tori Latham, Robb Report, 16 Sep. 2026

Grab a light jacket or hoodie if heading to one of the big outdoor events. — Ron Smiley, CBS News, 16 Sep. 2026

The outdoor terrace of Casa Cipriani stayed packed throughout the night, as that was where the celebrities each appeared and where the many Europeans could smoke. — Leigh Nordstrom, Footwear News, 16 Sep. 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