out·​door | \ ˈau̇t-ˌdȯr How to pronounce outdoor (audio) , ˈau̇t-ˈdȯr\
variants: or less commonly outdoors \ ˈau̇t-​ˌdȯrz How to pronounce outdoors (audio) , ˈau̇t-​ˈdȯrz \

Definition of outdoor

1 : of or relating to the outdoors
2a : performed outdoors outdoor sports
b : outdoorsy an outdoor couple
3 : not enclosed : having no roof an outdoor restaurant

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Synonyms & Antonyms for outdoor


alfresco, open-air, out-of-door (or out-of-doors), outdoorsy



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Examples of outdoor in a Sentence

an outdoor picnic is always at the mercy of the weather, of course

Recent Examples on the Web

The property will have more than 20,000 square feet of indoor/outdoor space. Katherine Feser, Houston Chronicle, "Meadowlake Pet Resort to open near Galleria," 13 July 2018 The Haitian artist is the subject of a solo exhibition at the museum that explores the nature of domestic gardens and other outdoor spaces as mini-utopias. Carolina A. Miranda, latimes.com, "Datebook: Shots of old Route 66, dreamlike paintings and garments fashioned from paper," 12 July 2018 The Earth-Friendly Gardens program is designed to help San Diego County residents evaluate management choices when caring for outdoor spaces. Dawn Standke, sandiegouniontribune.com, "Tally up your garden’s earth friendliness," 12 July 2018 The open space in the rear of the first floor that used to be a storage space for the warehouse is now an outdoor space with potted plants. Diane M. Fiske, Philly.com, "Former Philly warehouse is transformed into an industrial-style home," 11 July 2018 Most regularly allow free usage of the outdoor tracks for running and walking as well as the tennis courts for those looking to enjoy pick-up games or their own little imaginary Wimbledon with family and friends. C.r. Walker, Daily Southtown, "Aside from tracks, high school exercise facilities remain largely off limits to community in summer," 9 July 2018 UC Davis' reserves provide an outdoor laboratory space for university level research classes, as well as activities for students from elementary level to high school. Adesuwa Agbonile, sacbee, "Fire dangers keeping UC Davis reserves in western Yolo County on high alert," 3 July 2018 The Urban League's complex would include a 200-meter indoor track and a 400-meter outdoor track with 4,000 seats between the two. Kate Talerico, The Courier-Journal, "Proposed Russell sports complex receives $10 million in city funding," 2 July 2018 Also on site: a still-evolving outdoor event space. Mike Snider, USA TODAY, "Guinness looks to tap into craft beer creativity with new US brewery, opening Aug. 3," 29 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'outdoor.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of outdoor

1748, in the meaning defined at sense 1

History and Etymology for outdoor

out (of) door, out (of) doors

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Statistics for outdoor

Last Updated

17 Apr 2019

Look-up Popularity

Time Traveler for outdoor

The first known use of outdoor was in 1748

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More Definitions for outdoor



English Language Learners Definition of outdoor

: done, used, or located outside a building


out·​door | \ ˈau̇t-ˌdȯr How to pronounce outdoor (audio) \

Kids Definition of outdoor

1 : used, being, or done outside an outdoor table outdoor sports
2 : preferring to spend time in the open air an outdoor person

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More from Merriam-Webster on outdoor

Rhyming Dictionary: Words that rhyme with outdoor

Thesaurus: All synonyms and antonyms for outdoor

Spanish Central: Translation of outdoor

Nglish: Translation of outdoor for Spanish Speakers

Britannica English: Translation of outdoor for Arabic Speakers

Comments on outdoor

What made you want to look up outdoor? Please tell us where you read or heard it (including the quote, if possible).


likely to have or produce good results

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