ˌoff-ˈair BrE AmE adjective [only before noun]
not being broadcast on the radio or television at the present moment OPP on air , on-air :
off-air television recordings
ˌoff-ˈair BrE AmE adjective [only before noun]
not being broadcast on the radio or television at the present moment OPP on air , on-air :
off-air television recordings
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012