Princeton's WordNet

1. outdoors, out-of-doors, open air, open(adj)

   where the air is unconfined

   "he wanted to get outdoors a little"; "the concert was held in the open air"; "camping in the open"

2. alfresco, open-air(a)(adj)

   in the open air

   "an alfresco lunch"; "an open-air theater"

Kernerman English Learner's Dictionary

1. open-air(adjective)ˈoʊpən

   happening outside

   an open-air concert

Wiktionary

1. open-air(Adjective)

   Taking place outdoors; alfresco

• buitelug, opelugAfrikaans
• في الخارِج، في الهَواء الطَّلْقArabic
• на откритоBulgarian
• ao ar livrePortuguese (BR)
• podširým nebemCzech
• Freiluft-...German
• udendørs-; frilufts-Danish
• υπαίθριοςGreek
• al aire libreSpanish
• vabaõhu-Estonian
• در هوای بازFarsi
• ulkoilma-Finnish
• en/de plein airFrench
• תָחַת כִּיפָּת הַשַׁמָיםHebrew
• खुला, मुक्तHindi
• vaniCroatian
• szabadtériHungarian
• di luarIndonesian
• úti-Icelandic
• all'apertoItalian
• 戸外のJapanese
• 야외의Korean
• atvirame ore, po atviru dangumiLithuanian
• brīvdabas-Latvian
• di luarMalay
• openlucht-Dutch
• frilufts-, utendørs, ute-Norwegian
• na wolnym powietrzuPolish
• در هوای بازPersian
• په آزاده هوا كښىPashto
• ao ar livrePortuguese
• на открытом воздухеRussian
• podšírym nebomSlovak
• na prostemSlovenian
• na otvorenomSerbian
• frilufts-Swedish
• ที่เกิดขึ้นกลางแจ้งThai
• açık havaTurkish
• 野外Chinese (Trad.)
• такий, що відбувається на свіжому повітріUkrainian
• کھلي ہواUrdu
• ngoài trờiVietnamese
• 野外Chinese (Simp.)