off the air . off the air {adj. phr.} Not broadcasting; observing radio silence. The talk show is off the air on Wednesdays and Fridays. Categories: add yours {adj. phr.} Source: A Dictionary of American Idioms by A. Makkai, M.T. Boatner, J.E. Gates © 2024 To section: O Subscribe to: American IdiomsIdioms feedEnglish languageHome page and general feed Comment on this entry