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

From above, the estate’s amenities come into focus, including a resort-style pool, full-size tennis court, private casita, four-car garage and outdoor wellness area with a hot tub and cold plunge. — David Caraccio, Sacbee.com, 25 Aug. 2026

Bringing outdoor houseplants inside protects them from cold weather and keeps them healthy through the winter. — Rachel Gillett, Martha Stewart, 25 Aug. 2026

The Garmin Instinct 3 pairs a crisp AMOLED display with outdoor-ready multi-band GPS precision. — Juhi Wadia, PC Magazine, 25 Aug. 2026

Hackney’s on Harms, the original flagship nearby in the same suburb founded in 1939, remains open during renovations with outdoor seating on the patio only. — Louisa Kung Liu Chu, Chicago Tribune, 25 Aug. 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