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outdoor

[out-dawr, -dohr] / ˈaʊtˌdɔr, -ˌdoʊr /
ADJECTIVE
in the open air
Synonyms
STRONGEST
rustic
STRONG
outside
WEAK
alfresco casual free garden healthful hilltop in the open informal invigorating mountain natural nature-loving out of the house out-of-doors patio picnic unrestricted woods yard
ADVERB
in the open air
Synonyms
STRONGEST
rustic
STRONG
outside
WEAK
alfresco casual free garden healthful hilltop in the open informal invigorating mountain natural nature-loving out of the house out-of-doors patio picnic unrestricted woods yard

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

When the researchers tested the technology under actual outdoor conditions, the system consistently produced formic acid from water and CO2 even as sunlight levels fluctuated.

From Science Daily • Jun. 11, 2026

Knicks owner James Dolan began feuding with new mayor Zohran Mamdani over outdoor watch parties.

From The Wall Street Journal • Jun. 11, 2026

Visitors can experience a variety of outdoor adventures including ziplining, canyoneering and horseback riding.

From MarketWatch • Jun. 11, 2026

Betws-y-Coed businessman Andy Jones, who owns outdoor mountaineering firm Seren Ventures, said the overnight parking ban risked driving tourists away.

From BBC • Jun. 10, 2026

The daring outdoor mice waded out to grab the motorcycle, but Ralph was quick.

From "Ralph S. Mouse" by Beverly Cleary

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