carried on or situated inside a building; used in or suitable for the inside of a building
"indoor activities for a rainy day"
"an indoor pool"
"an indoor setting"
I don't care for indoor games..but I..long to see a good English hunting-field.
Mrs Dalloway paid for the luxury of an indoor lavatory.
出自： L. Gordon
Promoters whose plan it was to start..an indoor pony-racing track in Atlantic City.
出自： S. Morley