- occurring, used, etc., in a house or building, rather than out of doors: indoor games.
Origin of indoor
Examples from the Web for indoor
To put that into perspective, indoor lighting is about 100 lux, while a bright, sunny day can hit 50,000 lux or more.Fight Seasonal Affective Disorder With This New Tracker
November 7, 2014
We lived in a tiny trailer that my mother had bought back in 1969, a trailer without running water or indoor plumbing.An Author at Home in Lonely Landscapes
July 11, 2014
Yet despite the increased risks, use of indoor tanning beds among teenagers remains widespread.Wake Up, Parents: Letting Your Kid Tan Is Like Letting Them Smoke
June 24, 2014
Harry, met about 25 wounded soldiers hoping to compete in the wheelchair rugby, cycling and indoor rowing events.Harry Supports Wounded Soldier Games
April 29, 2014
Harvesting is continual and despite the cold local winters at headquarters, the food stays warm in the indoor fields.America’s Next Agricultural Revolution Will Happen Indoors
April 26, 2014
I was afraid of the indoor life when I was coming down, but it's pleasanter than I looked for.'Lord Kilgobbin
Bathing is made necessary by the clothes we wear and by our indoor life.The Mother and Her Child
William S. Sadler
An Embassy servant came in and offered an indoor communicator.The Pirates of Ersatz
Mrs. Reilly's indoor sport was marrying the sixth floor off.Working With the Working Woman
Cornelia Stratton Parker
The Indoor Recreation Work is given in the form of plays and games.
- of, situated in, or appropriate to the inside of a house or other buildingan indoor tennis court; indoor amusements
Word Origin and History for indoor
1711, from within door (opposed to outdoor); the form indoors is first attested 1799 in George Washington's writings.